Gutless, no codes, power surges.

shark2000 · #1 01-05-2009, 12:22 AM

It's been doing this for a couple of months now. Idles fine, some power at low RPM, not much, definitely no power at high RPM. Almost sounds like a restriction in cat, but not sure. Changed fuel filter, fuels looks Grey on both side of filter. Had a bit more power after changing fuel filter, but then power loss seemed to get worse after a while. Changed plugs and wires. Disconnected exhaust after cat, still does it. Actron scanner comes up with no codes. I did a road test with it connected and recorded what happened. If any one can look at the readout and tell me what they think, PM me and I will email the file for you to look at the results. One reading on the MAF Flow @ 100% throttle was @ 18.82, but other times it like 118.82, 66.73, 110.66, 99.85, and 89.85. Not sure if that matters, but at Full throttle, in first gear, I could only go 44MPH, and after about 5 seconds of 44MPH, it finally shifts up. It feals really gutless on the way to 44MPH. I was thinking maybe one of the coils, or maybe the fuel pump? Maybe when the fuel filter was being clogged, it broke the fuel pump so it puts out low pressure. Not sure what to do next.

doctorhrdware · #2 01-05-2009, 12:53 AM

You can post the file and the members and or the mods can tell you what if any problems there might be.

shark2000 · #3 01-05-2009, 01:00 AM

1"=•¢ªrÂj$üMAF FLOW GR/SE 70.96
MAP KPA 103
COOLANT F 177
IAT F 75
IGN ADVANCE DE 23.5
ST FTRM1 % 0.0
LT FTRM1 % -3.4
VEH SPEED MPH 24
FUEL SYS 1 OPEN1
FUEL SYS 2 N/A
O2S11 V 0.905
ST FTRM11 % 0.0
O2S12 V 0.905
MIL DIST mi 0
OBD2 STAT CA/US

Frame 7 Time 5.0

MIL STATUS OFF
ABSLT TPS % 100.0
ENG SPEED RPM 4650
CALC LOAD % 77.6
MAF FLOW GR/SE118.82
MAP KPA 99
COOLANT F 176
IAT F 73
IGN ADVANCE DE 24.5
ST FTRM1 % 0.0
LT FTRM1 % -3.4
VEH SPEED MPH 38
FUEL SYS 1 OPEN1
FUEL SYS 2 N/A
O2S11 V 0.870
ST FTRM11 % 0.0
O2S12 V 0.920
MIL DIST mi 0
OBD2 STAT CA/US

Frame 8 Time 5.6

MIL STATUS OFF
ABSLT TPS % 100.0
ENG SPEED RPM 5160
CALC LOAD % 66.2
MAF FLOW GR/SE 18.82
MAP KPA 35
COOLANT F 176
IAT F 66
IGN ADVANCE DE 20.0
ST FTRM1 % -1.0
LT FTRM1 % -7.7
VEH SPEED MPH 40
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.850
ST FTRM11 % -5.1
O2S12 V 0.910
MIL DIST mi 0
OBD2 STAT CA/US

Frame 9 Time 6.3

MIL STATUS OFF
ABSLT TPS % 0.0
ENG SPEED RPM 1199
CALC LOAD % 4.7
MAF FLOW GR/SE 7.52
MAP KPA 37
COOLANT F 176
IAT F 68
IGN ADVANCE DE 20.0
ST FTRM1 % -3.4
LT FTRM1 % -10.4
VEH SPEED MPH 34
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.165
ST FTRM11 % 0.0
O2S12 V 0.875
MIL DIST mi 0
OBD2 STAT CA/US

Frame 10 Time 7.0

MIL STATUS OFF
ABSLT TPS % 7.8
ENG SPEED RPM 1745
CALC LOAD % 9.8
MAF FLOW GR/SE 18.42
MAP KPA 68
COOLANT F 176
IAT F 68
IGN ADVANCE DE 46.0
ST FTRM1 % 0.0
LT FTRM1 % -5.1
VEH SPEED MPH 34
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.415
ST FTRM11 % 2.3
O2S12 V 0.820
MIL DIST mi 0
OBD2 STAT CA/US

Frame 11 Time 7.7

MIL STATUS OFF
ABSLT TPS % 34.1
ENG SPEED RPM 2943
CALC LOAD % 9.8
MAF FLOW GR/SE 14.39
MAP KPA 29
COOLANT F 177
IAT F 68
IGN ADVANCE DE 24.5
ST FTRM1 % 0.7
LT FTRM1 % -10.4
VEH SPEED MPH 36
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.605
ST FTRM11 % -3.4
O2S12 V 0.805
MIL DIST mi 0
OBD2 STAT CA/US

Frame 12 Time 8.4

MIL STATUS OFF
ABSLT TPS % 7.4
ENG SPEED RPM 1759
CALC LOAD % 9.4
MAF FLOW GR/SE 14.65
MAP KPA 47
COOLANT F 177
IAT F 68
IGN ADVANCE DE 47.0
ST FTRM1 % -2.2
LT FTRM1 % -5.1
VEH SPEED MPH 36
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.095
ST FTRM11 % -1.0
O2S12 V 0.795
MIL DIST mi 0
OBD2 STAT CA/US

Frame 13 Time 9.1

MIL STATUS OFF
ABSLT TPS % 15.2
ENG SPEED RPM 1717
CALC LOAD % 15.6
MAF FLOW GR/SE 23.58
MAP KPA 79
COOLANT F 179
IAT F 68
IGN ADVANCE DE 25.0
ST FTRM1 % 2.3
LT FTRM1 % -10.4
VEH SPEED MPH 36
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.760
ST FTRM11 % 1.5
O2S12 V 0.785
MIL DIST mi 0
OBD2 STAT CA/US

Frame 14 Time 9.8

MIL STATUS OFF
ABSLT TPS % 0.0
ENG SPEED RPM 1016
CALC LOAD % 4.3
MAF FLOW GR/SE 6.53
MAP KPA 37
COOLANT F 179
IAT F 68
IGN ADVANCE DE 20.0
ST FTRM1 % 0.8
LT FTRM1 % -10.4
VEH SPEED MPH 18
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.080
ST FTRM11 % -3.4
O2S12 V 0.785
MIL DIST mi 0
OBD2 STAT CA/US

Frame 15 Time 10.5

MIL STATUS OFF
ABSLT TPS % 0.0
ENG SPEED RPM 695
CALC LOAD % 3.5
MAF FLOW GR/SE 5.61
MAP KPA 48
COOLANT F 179
IAT F 69
IGN ADVANCE DE 20.0
ST FTRM1 % 0.0
LT FTRM1 % -5.1
VEH SPEED MPH 1
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.050
ST FTRM11 % 2.3
O2S12 V 0.140
MIL DIST mi 0
OBD2 STAT CA/US

Frame 16 Time 11.1

MIL STATUS OFF
ABSLT TPS % 100.0
ENG SPEED RPM 2691
CALC LOAD % 45.0
MAF FLOW GR/SE 66.73
MAP KPA 102
COOLANT F 179
IAT F 69
IGN ADVANCE DE 24.5
ST FTRM1 % 0.0
LT FTRM1 % -3.4
VEH SPEED MPH 23
FUEL SYS 1 OPEN1
FUEL SYS 2 N/A
O2S11 V 0.855
ST FTRM11 % 0.0
O2S12 V 0.915
MIL DIST mi 0
OBD2 STAT CA/US

Frame 17 Time 11.8

MIL STATUS OFF
ABSLT TPS % 100.0
ENG SPEED RPM 4522
CALC LOAD % 75.2
MAF FLOW GR/SE110.66
MAP KPA 101
COOLANT F 179
IAT F 66
IGN ADVANCE DE 18.5
ST FTRM1 % 0.0
LT FTRM1 % -3.4
VEH SPEED MPH 37
FUEL SYS 1 OPEN1
FUEL SYS 2 N/A
O2S11 V 0.860
ST FTRM11 % 0.0
O2S12 V 0.910
MIL DIST mi 0
OBD2 STAT CA/US

Frame 18 Time 12.5

MIL STATUS OFF
ABSLT TPS % 100.0
ENG SPEED RPM 5552
CALC LOAD % 67.4
MAF FLOW GR/SE 99.85
MAP KPA 103
COOLANT F 177
IAT F 64
IGN ADVANCE DE 16.0
ST FTRM1 % 0.0
LT FTRM1 % -4.6
VEH SPEED MPH 40
FUEL SYS 1 OPEN1
FUEL SYS 2 N/A
O2S11 V 0.830
ST FTRM11 % 0.0
O2S12 V 0.905
MIL DIST mi 0
OBD2 STAT CA/US

Frame 19 Time 13.2

MIL STATUS OFF
ABSLT TPS % 100.0
ENG SPEED RPM 3556
CALC LOAD % 57.2
MAF FLOW GR/SE 89.58
MAP KPA 103
COOLANT F 177
IAT F 62
IGN ADVANCE DE 25.5
ST FTRM1 % 0.8
LT FTRM1 % -5.1
VEH SPEED MPH 45
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.785
ST FTRM11 % -2.2
O2S12 V 0.890
MIL DIST mi 0
OBD2 STAT CA/US

Frame 20 Time 13.9

MIL STATUS OFF
ABSLT TPS % 0.0
ENG SPEED RPM 1405
CALC LOAD % 5.0
MAF FLOW GR/SE 7.94
MAP KPA 34
COOLANT F 179
IAT F 62
IGN ADVANCE DE 20.0
ST FTRM1 % 0.0
LT FTRM1 % -11.6
VEH SPEED MPH 44
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.130
ST FTRM11 % -1.0
O2S12 V 0.850
MIL DIST mi 0
OBD2 STAT CA/US

Frame 21 Time 14.6

MIL STATUS OFF
ABSLT TPS % 0.0
ENG SPEED RPM 1293
CALC LOAD % 4.7
MAF FLOW GR/SE 7.23
MAP KPA 44
COOLANT F 179
IAT F 64
IGN ADVANCE DE 24.5
ST FTRM1 % 1.5
LT FTRM1 % -11.6
VEH SPEED MPH 38
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.075
ST FTRM11 % 0.0
O2S12 V 0.845
MIL DIST mi 0
OBD2 STAT CA/US

Frame 22 Time 15.3

MIL STATUS OFF
ABSLT TPS % 0.0
ENG SPEED RPM 1026
CALC LOAD % 4.3
MAF FLOW GR/SE 6.42
MAP KPA 37
COOLANT F 183
IAT F 64
IGN ADVANCE DE 20.0
ST FTRM1 % 0.0
LT FTRM1 % -11.6
VEH SPEED MPH 31
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.565
ST FTRM11 % -1.0
O2S12 V 0.830
MIL DIST mi 0
OBD2 STAT CA/US

Frame 23 Time 16.0

MIL STATUS OFF
ABSLT TPS % 0.0
ENG SPEED RPM 897
CALC LOAD % 3.9
MAF FLOW GR/SE 6.00
MAP KPA 40
COOLANT F 183
IAT F 66
IGN ADVANCE DE 20.0
ST FTRM1 % 0.0
LT FTRM1 % -11.6
VEH SPEED MPH 18
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.075
ST FTRM11 % 0.7
O2S12 V 0.820
MIL DIST mi 0
OBD2 STAT CA/US

Frame 24 Time 16.6

MIL STATUS OFF
ABSLT TPS % 0.0
ENG SPEED RPM 832
CALC LOAD % 3.9
MAF FLOW GR/SE 6.04
MAP KPA 46
COOLANT F 185
IAT F 66
IGN ADVANCE DE 20.0
ST FTRM1 % 0.0
LT FTRM1 % -11.6
VEH SPEED MPH 5
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.770
ST FTRM11 % 0.0
O2S12 V 0.815
MIL DIST mi 0
OBD2 STAT CA/US

Frame 25 Time 17.3

MIL STATUS OFF
ABSLT TPS % 0.0
ENG SPEED RPM 791
CALC LOAD % 10.5
MAF FLOW GR/SE 20.50
MAP KPA 68
COOLANT F 186
IAT F 68
IGN ADVANCE DE 24.5
ST FTRM1 % -1.0
LT FTRM1 % -5.1
VEH SPEED MPH 8
FUEL SYS 1 OPEN1
FUEL SYS 2 N/A
O2S11 V 0.095
ST FTRM11 % 3.9
O2S12 V 0.780
MIL DIST mi 0
OBD2 STAT CA/US

Frame 26 Time 18.0

MIL STATUS OFF
ABSLT TPS % 36.4
ENG SPEED RPM 2800
CALC LOAD % 35.6
MAF FLOW GR/SE 54.22
MAP KPA 102
COOLANT F 186
IAT F 66
IGN ADVANCE DE 32.0
ST FTRM1 % 5.4
LT FTRM1 % -5.1
VEH SPEED MPH 22
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.450
ST FTRM11 % 0.0
O2S12 V 0.760
MIL DIST mi 0
OBD2 STAT CA/US

Frame 27 Time 18.7

MIL STATUS OFF
ABSLT TPS % 0.0
ENG SPEED RPM 1003
CALC LOAD % 4.7
MAF FLOW GR/SE 7.07
MAP KPA 43
COOLANT F 185
IAT F 66
IGN ADVANCE DE 20.0
ST FTRM1 % 0.8
LT FTRM1 % -11.6
VEH SPEED MPH 12
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.140
ST FTRM11 % -1.0
O2S12 V 0.760
MIL DIST mi 0
OBD2 STAT CA/US

Frame 28 Time 19.4

MIL STATUS OFF
ABSLT TPS % 4.3
ENG SPEED RPM 897
CALC LOAD % 11.3
MAF FLOW GR/SE 14.20
MAP KPA 55
COOLANT F 183
IAT F 66
IGN ADVANCE DE 43.5
ST FTRM1 % 0.0
LT FTRM1 % -5.1
VEH SPEED MPH 9
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.215
ST FTRM11 % 0.0
O2S12 V 0.755
MIL DIST mi 0
OBD2 STAT CA/US

Frame 29 Time 20.1

MIL STATUS OFF
ABSLT TPS % 25.0
ENG SPEED RPM 2062
CALC LOAD % 24.3
MAF FLOW GR/SE 38.35
MAP KPA 102
COOLANT F 183
IAT F 66
IGN ADVANCE DE 22.0
ST FTRM1 % 0.0
LT FTRM1 % -3.4
VEH SPEED MPH 16
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.155
ST FTRM11 % 0.0
O2S12 V 0.775
MIL DIST mi 0
OBD2 STAT CA/US

Frame 30 Time 20.8

MIL STATUS OFF
ABSLT TPS % 0.0
ENG SPEED RPM 855
CALC LOAD % 4.7
MAF FLOW GR/SE 6.93
MAP KPA 47
COOLANT F 183
IAT F 66
IGN ADVANCE DE 20.0
ST FTRM1 % 0.0
LT FTRM1 % -11.6
VEH SPEED MPH 5
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.335
ST FTRM11 % 0.0
O2S12 V 0.755
MIL DIST mi 0
OBD2 STAT CA/US

Frame 31 Time 21.5

MIL STATUS OFF
ABSLT TPS % 0.0
ENG SPEED RPM 686
CALC LOAD % 3.5
MAF FLOW GR/SE 5.52
MAP KPA 79
COOLANT F 183
IAT F 68
IGN ADVANCE DE 21.5
ST FTRM1 % -3.4
LT FTRM1 % -6.3
VEH SPEED MPH 6
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.880
ST FTRM11 % 0.0
O2S12 V 0.885
MIL DIST mi 0
OBD2 STAT CA/US

Frame 32 Time 22.2

MIL STATUS OFF
ABSLT TPS % 100.0
ENG SPEED RPM 3081
CALC LOAD % 50.1
MAF FLOW GR/SE 78.74
MAP KPA 103
COOLANT F 183
IAT F 66
IGN ADVANCE DE 22.5
ST FTRM1 % 0.0
LT FTRM1 % -3.4
VEH SPEED MPH 27
FUEL SYS 1 OPEN1
FUEL SYS 2 N/A
O2S11 V 0.855
ST FTRM11 % 0.0
O2S12 V 0.885
MIL DIST mi 0
OBD2 STAT CA/US

Frame 33 Time 22.8

MIL STATUS OFF
ABSLT TPS % 100.0
ENG SPEED RPM 4928
CALC LOAD % 75.2
MAF FLOW GR/SE109.92
MAP KPA 103
COOLANT F 183
IAT F 64
IGN ADVANCE DE 18.0
ST FTRM1 % 0.0
LT FTRM1 % -3.4
VEH SPEED MPH 38
FUEL SYS 1 OPEN1
FUEL SYS 2 N/A
O2S11 V 0.835
ST FTRM11 % 0.0
O2S12 V 0.870
MIL DIST mi 0
OBD2 STAT CA/US

Frame 34 Time 23.5

MIL STATUS OFF
ABSLT TPS % 100.0
ENG SPEED RPM 5552
CALC LOAD % 65.0
MAF FLOW GR/SE 98.17
MAP KPA 102
COOLANT F 183
IAT F 60
IGN ADVANCE DE 14.0
ST FTRM1 % 0.0
LT FTRM1 % -4.6
VEH SPEED MPH 40
FUEL SYS 1 OPEN1
FUEL SYS 2 N/A
O2S11 V 0.740
ST FTRM11 % 0.0
O2S12 V 0.860
MIL DIST mi 0
OBD2 STAT CA/US

Frame 35 Time 24.2

MIL STATUS OFF
ABSLT TPS % 100.0
ENG SPEED RPM 3331
CALC LOAD % 45.8
MAF FLOW GR/SE 67.48
MAP KPA 103
COOLANT F 183
IAT F 59
IGN ADVANCE DE 6.5
ST FTRM1 % 0.0
LT FTRM1 % -3.4
VEH SPEED MPH 44
FUEL SYS 1 OPEN1
FUEL SYS 2 N/A
O2S11 V 0.820
ST FTRM11 % 0.0
O2S12 V 0.900
MIL DIST mi 0
OBD2 STAT CA/US

Frame 36 Time 24.9

MIL STATUS OFF
ABSLT TPS % 0.0
ENG SPEED RPM 1856
CALC LOAD % 7.0
MAF FLOW GR/SE 10.35
MAP KPA 39
COOLANT F 185
IAT F 59
IGN ADVANCE DE 20.0
ST FTRM1 % 0.0
LT FTRM1 % -11.6
VEH SPEED MPH 44
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.640
ST FTRM11 % 0.7
O2S12 V 0.830
MIL DIST mi 0
OBD2 STAT CA/US

Frame 37 Time 25.6

MIL STATUS OFF
ABSLT TPS % 0.0
ENG SPEED RPM 1267
CALC LOAD % 4.7
MAF FLOW GR/SE 7.28
MAP KPA 36
COOLANT F 186
IAT F 60
IGN ADVANCE DE 24.5
ST FTRM1 % 0.8
LT FTRM1 % -11.6
VEH SPEED MPH 37
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.060
ST FTRM11 % 0.0
O2S12 V 0.815
MIL DIST mi 0
OBD2 STAT CA/US

Frame 38 Time 26.3

MIL STATUS OFF
ABSLT TPS % 0.0
ENG SPEED RPM 967
CALC LOAD % 4.3
MAF FLOW GR/SE 6.39
MAP KPA 37
COOLANT F 188
IAT F 62
IGN ADVANCE DE 20.0
ST FTRM1 % -3.4
LT FTRM1 % -11.6
VEH SPEED MPH 30
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.585
ST FTRM11 % -3.4
O2S12 V 0.800
MIL DIST mi 0
OBD2 STAT CA/US

Frame 39 Time 27.0

MIL STATUS OFF
ABSLT TPS % 0.0
ENG SPEED RPM 941
CALC LOAD % 3.9
MAF FLOW GR/SE 5.97
MAP KPA 39
COOLANT F 190
IAT F 62
IGN ADVANCE DE 20.0
ST FTRM1 % -2.2
LT FTRM1 % -11.8
VEH SPEED MPH 16
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.780
ST FTRM11 % -2.2
O2S12 V 0.790
MIL DIST mi 0
OBD2 STAT CA/US

Frame 40 Time 27.7

MIL STATUS($10) ---
ABSLT TPS($10) ---
ENG SPEED($10) ---
CALC LOAD($10) ---
MAF FLOW($10) ---
MAP($10) ---
COOLANT($10) ---
IAT($10) ---
IGN ADVANCE($10) ---
ST FTRM1($10) ---
LT FTRM1($10) ---
VEH SPEED MPH 0
FUEL SYS 1 CLSD
FUEL SYS 2 OPEN1
O2S11 V 0.045
ST FTRM11 % -91.1
O2S12 V 0.070
MIL DIST mi 5427
OBD2 STAT N/A

Frame -1 Time -14.4

MIL STATUS OFF
ABSLT TPS % 0.0
ENG SPEED RPM 0
CALC LOAD % 0.0
MAF FLOW GR/SE 0.00
MAP KPA 0
COOLANT F -40
IAT F -40
IGN ADVANCE DE -64.6
ST FTRM1 % -100.6
LT FTRM1 % -100.6
VEH SPEED MPH 0
FUEL SYS 1 N/A
FUEL SYS 2 N/A
O2S11 V 0.000
ST FTRM11 % -100.6
O2S12 V 0.000
MIL DIST mi 0
OBD2 STAT N/A

Frame 28415 Time1404.2

3100 · #4 01-05-2009, 10:58 AM

What size engine is it? so you step on the pedal 100% WOT engine pulls for a while rpm goes very high but then you do not feel any torque for a two sec then finally shifts in second gear? your trans is slipping.

on v6 maf at idle should be 3 to 4 g/s not 7.5

3100 · #5 01-05-2009, 11:44 AM

you should record one at idle engine warm, but anyway your frame #31 is the closest one to engine completely at idle and warm. So take a look at MAP kpa at idle 686 RPM throttle 0% at that point engine should produce close to 21 inHG of vacuum. Map usually measures amount that when you subtract from your curent atmosperic pressure which is average 29in Hg you will get how much of inHG your engine produces. So if we convert 79kpa to inHG we get 23.41 inHG then 29-23.41=5.59 in hg which tells me eather you have huge vacuum leak or your MAP is bad. Alsoe with ignition on engine off your map shoud read atmospheric pressure of close to 29.5 inHG or about 99.52 kpa.

Also look at the frame #39 here your Map is showing normal kpa. So it could be intermittent MAP.
Also try this: remove that big rubber hose that goes between your MAF and your air filter box test it without that hose so engine will suck air from under the hood it will make a cool sound by the way but just wanted to see if you will have the same problem with power loss. Please try this it will not hurt your engine for 2-3 minutes without air filter trust me.
do not go and change MAP right away record one reading at idle engine warm and 0 mph. Then engine off ignition on record reading.

also if you can tell us what the IAC count is at idle.

shark2000 · #6 01-05-2009, 02:18 PM

The engine is the 3400 V-6, and just so happens, I had taken the top of the air cleaner off, so the black part between the air cleaner and the MAF was off. It still ran the same. Now if there was a huge vacuum leak, I'm sure I would hear that with the hood up. I don't hear anything obviously leaking, so I'm going to go with the MAP answer. I did a test at idle and it was running around 33 + -. When I did the road test with the scanner connected, I started in Drive, so that may be why it's at 44, but at the end of the next print out of the scanner, is in the driveway at idle in Neutral and it's @ 31-48. Now that MAP is the little black sealed box in top in the middle isn't it. I have one from when I had my Camero. I replaced it and when I was in England, I crashed it, so I just had to keep that thing. It cost me $75 used. I know it's in the garage somewhere. Would it still be the same piece today as it was on my 86 Camero with 2.8 V-6? I've seen those same boxes on just about all those GM cars, even the V-8's look like the same part.
Back to trouble shooting, I do notice that sometimes when I take off from a stop, it does seem to act up more. Sometimes it does better than other times. I always get that surge of power at 3000 RPM's. Can't take away the power band. It just seems more noticeable with it running like this.

shark2000 · #7 01-05-2009, 02:22 PM

New Actron scanner printout.
Started in D, ended in P in driveway idling.

Recorded Data

MIL STATUS OFF
ABSLT TPS % 0.0
ENG SPEED RPM 688
CALC LOAD % 3.1
MAF FLOW GR/SE 4.78
MAP KPA 42
COOLANT F 185
IAT F 64
IGN ADVANCE DE 21.5
ST FTRM1 % 0.0
LT FTRM1 % -9.2
VEH SPEED MPH 0
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.100
ST FTRM11 % -1.0
O2S12 V 0.545
MIL DIST mi 0
OBD2 STAT CA/US

Frame 0 Time 0.0

MIL STATUS OFF
ABSLT TPS % 0.0
ENG SPEED RPM 708
CALC LOAD % 3.1
MAF FLOW GR/SE 4.79
MAP KPA 42
COOLANT F 185
IAT F 64
IGN ADVANCE DE 21.5
ST FTRM1 % 0.8
LT FTRM1 % -9.2
VEH SPEED MPH 0
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.080
ST FTRM11 % 0.0
O2S12 V 0.555
MIL DIST mi 0
OBD2 STAT CA/US

Frame 1 Time 0.9

MIL STATUS OFF
ABSLT TPS % 0.0
ENG SPEED RPM 705
CALC LOAD % 3.1
MAF FLOW GR/SE 4.87
MAP KPA 43
COOLANT F 185
IAT F 64
IGN ADVANCE DE 20.0
ST FTRM1 % 0.0
LT FTRM1 % -9.2
VEH SPEED MPH 0
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.075
ST FTRM11 % -2.2
O2S12 V 0.555
MIL DIST mi 0
OBD2 STAT CA/US

Frame 2 Time 1.5

MIL STATUS OFF
ABSLT TPS % 0.0
ENG SPEED RPM 701
CALC LOAD % 3.1
MAF FLOW GR/SE 4.89
MAP KPA 43
COOLANT F 185
IAT F 64
IGN ADVANCE DE 20.0
ST FTRM1 % -1.0
LT FTRM1 % -9.2
VEH SPEED MPH 0
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.755
ST FTRM11 % 0.8
O2S12 V 0.555
MIL DIST mi 0
OBD2 STAT CA/US

Frame 3 Time 2.2

MIL STATUS OFF
ABSLT TPS % 0.0
ENG SPEED RPM 668
CALC LOAD % 2.7
MAF FLOW GR/SE 4.78
MAP KPA 44
COOLANT F 185
IAT F 64
IGN ADVANCE DE 22.5
ST FTRM1 % -1.0
LT FTRM1 % -9.2
VEH SPEED MPH 0
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.070
ST FTRM11 % -1.0
O2S12 V 0.555
MIL DIST mi 0
OBD2 STAT CA/US

Frame 4 Time 2.9

MIL STATUS OFF
ABSLT TPS % 0.0
ENG SPEED RPM 670
CALC LOAD % 3.1
MAF FLOW GR/SE 4.95
MAP KPA 44
COOLANT F 185
IAT F 64
IGN ADVANCE DE 21.0
ST FTRM1 % 0.8
LT FTRM1 % -9.2
VEH SPEED MPH 0
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.705
ST FTRM11 % 0.0
O2S12 V 0.800
MIL DIST mi 0
OBD2 STAT CA/US

Frame 5 Time 3.6

MIL STATUS OFF
ABSLT TPS % 100.0
ENG SPEED RPM 2770
CALC LOAD % 46.6
MAF FLOW GR/SE 75.00
MAP KPA 102
COOLANT F 185
IAT F 64
IGN ADVANCE DE 26.0
ST FTRM1 % 0.0
LT FTRM1 % -2.2
VEH SPEED MPH 24
FUEL SYS 1 OPEN1
FUEL SYS 2 N/A
O2S11 V 0.890
ST FTRM11 % 0.0
O2S12 V 0.905
MIL DIST mi 0
OBD2 STAT CA/US

Frame 6 Time 4.3

MIL STATUS OFF
ABSLT TPS % 100.0
ENG SPEED RPM 4838
CALC LOAD % 80.0
MAF FLOW GR/SE119.53
MAP KPA 102
COOLANT F 185
IAT F 62
IGN ADVANCE DE 20.0
ST FTRM1 % 0.0
LT FTRM1 % -2.2
VEH SPEED MPH 39
FUEL SYS 1 OPEN1
FUEL SYS 2 N/A
O2S11 V 0.840
ST FTRM11 % -1.0
O2S12 V 0.920
MIL DIST mi 0
OBD2 STAT CA/US

Frame 7 Time 5.0

MIL STATUS OFF
ABSLT TPS % 0.0
ENG SPEED RPM 1309
CALC LOAD % 24.3
MAF FLOW GR/SE 29.00
MAP KPA 45
COOLANT F 186
IAT F 60
IGN ADVANCE DE 26.0
ST FTRM1 % 0.0
LT FTRM1 % -9.2
VEH SPEED MPH 39
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.105
ST FTRM11 % 0.7
O2S12 V 0.845
MIL DIST mi 0
OBD2 STAT CA/US

Frame 8 Time 5.7

MIL STATUS OFF
ABSLT TPS % 0.0
ENG SPEED RPM 1185
CALC LOAD % 4.3
MAF FLOW GR/SE 6.79
MAP KPA 39
COOLANT F 186
IAT F 60
IGN ADVANCE DE 20.0
ST FTRM1 % 0.8
LT FTRM1 % -10.4
VEH SPEED MPH 35
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.705
ST FTRM11 % 0.8
O2S12 V 0.815
MIL DIST mi 0
OBD2 STAT CA/US

Frame 9 Time 6.3

MIL STATUS OFF
ABSLT TPS % 7.8
ENG SPEED RPM 1531
CALC LOAD % 11.7
MAF FLOW GR/SE 19.88
MAP KPA 64
COOLANT F 188
IAT F 60
IGN ADVANCE DE 29.0
ST FTRM1 % -4.9
LT FTRM1 % -2.2
VEH SPEED MPH 34
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.855
ST FTRM11 % 0.0
O2S12 V 0.785
MIL DIST mi 0
OBD2 STAT CA/US

Frame 10 Time 7.0

MIL STATUS OFF
ABSLT TPS % 17.6
ENG SPEED RPM 2125
CALC LOAD % 18.8
MAF FLOW GR/SE 27.32
MAP KPA 77
COOLANT F 188
IAT F 60
IGN ADVANCE DE 49.0
ST FTRM1 % 1.5
LT FTRM1 % -4.9
VEH SPEED MPH 36
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.145
ST FTRM11 % -1.0
O2S12 V 0.730
MIL DIST mi 0
OBD2 STAT CA/US

Frame 11 Time 7.7

MIL STATUS OFF
ABSLT TPS % 0.0
ENG SPEED RPM 1761
CALC LOAD % 6.6
MAF FLOW GR/SE 12.00
MAP KPA 37
COOLANT F 188
IAT F 60
IGN ADVANCE DE 36.5
ST FTRM1 % -1.0
LT FTRM1 % -5.1
VEH SPEED MPH 37
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.700
ST FTRM11 % 0.8
O2S12 V 0.655
MIL DIST mi 0
OBD2 STAT CA/US

Frame 12 Time 8.4

MIL STATUS OFF
ABSLT TPS % 29.0
ENG SPEED RPM 1845
CALC LOAD % 9.8
MAF FLOW GR/SE 13.67
MAP KPA 40
COOLANT F 188
IAT F 60
IGN ADVANCE DE 27.5
ST FTRM1 % 0.0
LT FTRM1 % -5.1
VEH SPEED MPH 37
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.075
ST FTRM11 % 0.0
O2S12 V 0.105
MIL DIST mi 0
OBD2 STAT CA/US

Frame 13 Time 9.1

MIL STATUS OFF
ABSLT TPS % 0.0
ENG SPEED RPM 1568
CALC LOAD % 4.7
MAF FLOW GR/SE 7.28
MAP KPA 28
COOLANT F 188
IAT F 60
IGN ADVANCE DE 20.0
ST FTRM1 % 1.5
LT FTRM1 % -10.4
VEH SPEED MPH 36
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.790
ST FTRM11 % -2.2
O2S12 V 0.630
MIL DIST mi 0
OBD2 STAT CA/US

Frame 14 Time 9.8

MIL STATUS OFF
ABSLT TPS % 7.4
ENG SPEED RPM 1698
CALC LOAD % 10.1
MAF FLOW GR/SE 14.42
MAP KPA 44
COOLANT F 186
IAT F 60
IGN ADVANCE DE 45.5
ST FTRM1 % -1.0
LT FTRM1 % -6.3
VEH SPEED MPH 35
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.625
ST FTRM11 % 0.8
O2S12 V 0.255
MIL DIST mi 0
OBD2 STAT CA/US

Frame 15 Time 10.5

MIL STATUS OFF
ABSLT TPS % 0.0
ENG SPEED RPM 980
CALC LOAD % 3.5
MAF FLOW GR/SE 7.78
MAP KPA 38
COOLANT F 186
IAT F 62
IGN ADVANCE DE 37.5
ST FTRM1 % -1.0
LT FTRM1 % -6.3
VEH SPEED MPH 33
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.760
ST FTRM11 % 0.0
O2S12 V 0.660
MIL DIST mi 0
OBD2 STAT CA/US

Frame 16 Time 11.2

MIL STATUS OFF
ABSLT TPS % 0.0
ENG SPEED RPM 988
CALC LOAD % 3.5
MAF FLOW GR/SE 5.35
MAP KPA 32
COOLANT F 186
IAT F 62
IGN ADVANCE DE 20.0
ST FTRM1 % -1.0
LT FTRM1 % -11.6
VEH SPEED MPH 32
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.085
ST FTRM11 % -1.0
O2S12 V 0.690
MIL DIST mi 0
OBD2 STAT CA/US

Frame 17 Time 11.9

MIL STATUS OFF
ABSLT TPS % 0.0
ENG SPEED RPM 1020
CALC LOAD % 3.9
MAF FLOW GR/SE 6.03
MAP KPA 34
COOLANT F 186
IAT F 62
IGN ADVANCE DE 20.0
ST FTRM1 % 0.8
LT FTRM1 % -11.6
VEH SPEED MPH 31
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.720
ST FTRM11 % -3.4
O2S12 V 0.690
MIL DIST mi 0
OBD2 STAT CA/US

Frame 18 Time 12.6

MIL STATUS OFF
ABSLT TPS % 0.0
ENG SPEED RPM 1018
CALC LOAD % 3.9
MAF FLOW GR/SE 6.00
MAP KPA 34
COOLANT F 185
IAT F 62
IGN ADVANCE DE 20.0
ST FTRM1 % 0.0
LT FTRM1 % -11.6
VEH SPEED MPH 21
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.075
ST FTRM11 % 0.7
O2S12 V 0.695
MIL DIST mi 0
OBD2 STAT CA/US

Frame 19 Time 13.2

MIL STATUS OFF
ABSLT TPS % 0.0
ENG SPEED RPM 870
CALC LOAD % 3.9
MAF FLOW GR/SE 5.99
MAP KPA 41
COOLANT F 185
IAT F 62
IGN ADVANCE DE 20.0
ST FTRM1 % 0.7
LT FTRM1 % -11.6
VEH SPEED MPH 10
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.085
ST FTRM11 % 3.9
O2S12 V 0.135
MIL DIST mi 0
OBD2 STAT CA/US

Frame 20 Time 13.9

MIL STATUS OFF
ABSLT TPS % 0.0
ENG SPEED RPM 703
CALC LOAD % 2.7
MAF FLOW GR/SE 4.64
MAP KPA 43
COOLANT F 185
IAT F 62
IGN ADVANCE DE 20.0
ST FTRM1 % 0.0
LT FTRM1 % -9.2
VEH SPEED MPH 0
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.135
ST FTRM11 % 0.0
O2S12 V 0.660
MIL DIST mi 0
OBD2 STAT CA/US

Frame 21 Time 14.6

MIL STATUS OFF
ABSLT TPS % 0.0
ENG SPEED RPM 715
CALC LOAD % 3.1
MAF FLOW GR/SE 4.71
MAP KPA 42
COOLANT F 185
IAT F 64
IGN ADVANCE DE 20.0
ST FTRM1 % 0.8
LT FTRM1 % -5.1
VEH SPEED MPH 3
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.620
ST FTRM11 % 0.7
O2S12 V 0.655
MIL DIST mi 0
OBD2 STAT CA/US

Frame 22 Time 15.3

MIL STATUS OFF
ABSLT TPS % 65.8
ENG SPEED RPM 2860
CALC LOAD % 47.0
MAF FLOW GR/SE 72.27
MAP KPA 100
COOLANT F 185
IAT F 62
IGN ADVANCE DE 30.5
ST FTRM1 % 3.1
LT FTRM1 % -5.1
VEH SPEED MPH 24
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.805
ST FTRM11 % 2.3
O2S12 V 0.650
MIL DIST mi 0
OBD2 STAT CA/US

Frame 23 Time 16.0

MIL STATUS OFF
ABSLT TPS % 69.4
ENG SPEED RPM 2854
CALC LOAD % 44.7
MAF FLOW GR/SE 69.25
MAP KPA 102
COOLANT F 183
IAT F 60
IGN ADVANCE DE 26.5
ST FTRM1 % 0.7
LT FTRM1 % -2.2
VEH SPEED MPH 35
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.505
ST FTRM11 % 0.0
O2S12 V 0.840
MIL DIST mi 0
OBD2 STAT CA/US

Frame 24 Time 16.7

MIL STATUS OFF
ABSLT TPS % 100.0
ENG SPEED RPM 3435
CALC LOAD % 57.6
MAF FLOW GR/SE 84.89
MAP KPA 101
COOLANT F 183
IAT F 59
IGN ADVANCE DE 21.0
ST FTRM1 % 0.0
LT FTRM1 % -2.2
VEH SPEED MPH 46
FUEL SYS 1 OPEN1
FUEL SYS 2 N/A
O2S11 V 0.850
ST FTRM11 % 0.8
O2S12 V 0.900
MIL DIST mi 0
OBD2 STAT CA/US

Frame 25 Time 17.4

MIL STATUS OFF
ABSLT TPS % 0.0
ENG SPEED RPM 1471
CALC LOAD % 5.4
MAF FLOW GR/SE 8.14
MAP KPA 31
COOLANT F 183
IAT F 59
IGN ADVANCE DE 20.0
ST FTRM1 % -2.2
LT FTRM1 % -11.6
VEH SPEED MPH 45
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.755
ST FTRM11 % -2.2
O2S12 V 0.840
MIL DIST mi 0
OBD2 STAT CA/US

Frame 26 Time 18.1

MIL STATUS OFF
ABSLT TPS % 16.4
ENG SPEED RPM 2059
CALC LOAD % 18.4
MAF FLOW GR/SE 33.82
MAP KPA 97
COOLANT F 183
IAT F 59
IGN ADVANCE DE 54.5
ST FTRM1 % 0.0
LT FTRM1 % -6.3
VEH SPEED MPH 46
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.265
ST FTRM11 % 0.0
O2S12 V 0.790
MIL DIST mi 0
OBD2 STAT CA/US

Frame 27 Time 18.8

MIL STATUS OFF
ABSLT TPS % 0.0
ENG SPEED RPM 1396
CALC LOAD % 4.7
MAF FLOW GR/SE 7.17
MAP KPA 29
COOLANT F 185
IAT F 59
IGN ADVANCE DE 20.0
ST FTRM1 % 0.0
LT FTRM1 % -11.6
VEH SPEED MPH 44
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.160
ST FTRM11 % 1.5
O2S12 V 0.330
MIL DIST mi 0
OBD2 STAT CA/US

Frame 28 Time 19.4

MIL STATUS OFF
ABSLT TPS % 0.0
ENG SPEED RPM 1130
CALC LOAD % 3.9
MAF FLOW GR/SE 6.47
MAP KPA 40
COOLANT F 185
IAT F 59
IGN ADVANCE DE 20.0
ST FTRM1 % 0.8
LT FTRM1 % -10.4
VEH SPEED MPH 36
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.070
ST FTRM11 % -4.6
O2S12 V 0.780
MIL DIST mi 0
OBD2 STAT CA/US

Frame 29 Time 20.1

MIL STATUS OFF
ABSLT TPS % 0.0
ENG SPEED RPM 923
CALC LOAD % 3.9
MAF FLOW GR/SE 6.12
MAP KPA 37
COOLANT F 186
IAT F 60
IGN ADVANCE DE 20.0
ST FTRM1 % -1.0
LT FTRM1 % -11.6
VEH SPEED MPH 19
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.675
ST FTRM11 % -2.2
O2S12 V 0.785
MIL DIST mi 0
OBD2 STAT CA/US

Frame 30 Time 20.8

MIL STATUS OFF
ABSLT TPS % 0.0
ENG SPEED RPM 808
CALC LOAD % 3.5
MAF FLOW GR/SE 5.39
MAP KPA 40
COOLANT F 186
IAT F 60
IGN ADVANCE DE 20.0
ST FTRM1 % -2.2
LT FTRM1 % -10.4
VEH SPEED MPH 1
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.730
ST FTRM11 % 0.0
O2S12 V 0.775
MIL DIST mi 0
OBD2 STAT CA/US

Frame 31 Time 21.5

MIL STATUS OFF
ABSLT TPS % 0.0
ENG SPEED RPM 681
CALC LOAD % 3.1
MAF FLOW GR/SE 4.75
MAP KPA 43
COOLANT F 186
IAT F 62
IGN ADVANCE DE 19.5
ST FTRM1 % 0.7
LT FTRM1 % -9.2
VEH SPEED MPH 0
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.195
ST FTRM11 % 0.0
O2S12 V 0.770
MIL DIST mi 0
OBD2 STAT CA/US

Frame 32 Time 22.2

MIL STATUS OFF
ABSLT TPS % 0.0
ENG SPEED RPM 716
CALC LOAD % 4.7
MAF FLOW GR/SE 19.78
MAP KPA 75
COOLANT F 186
IAT F 62
IGN ADVANCE DE 30.5
ST FTRM1 % -3.4
LT FTRM1 % -5.1
VEH SPEED MPH 7
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.060
ST FTRM11 % -1.0
O2S12 V 0.390
MIL DIST mi 0
OBD2 STAT CA/US

Frame 33 Time 22.9

MIL STATUS OFF
ABSLT TPS % 36.8
ENG SPEED RPM 2441
CALC LOAD % 27.4
MAF FLOW GR/SE 42.79
MAP KPA 92
COOLANT F 186
IAT F 60
IGN ADVANCE DE 41.0
ST FTRM1 % 2.3
LT FTRM1 % -4.9
VEH SPEED MPH 20
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.115
ST FTRM11 % 1.5
O2S12 V 0.330
MIL DIST mi 0
OBD2 STAT CA/US

Frame 34 Time 23.6

MIL STATUS OFF
ABSLT TPS % 32.5
ENG SPEED RPM 2308
CALC LOAD % 26.2
MAF FLOW GR/SE 40.74
MAP KPA 97
COOLANT F 186
IAT F 59
IGN ADVANCE DE 39.0
ST FTRM1 % 3.1
LT FTRM1 % -4.9
VEH SPEED MPH 28
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.760
ST FTRM11 % 0.7
O2S12 V 0.530
MIL DIST mi 0
OBD2 STAT CA/US

Frame 35 Time 24.3

MIL STATUS OFF
ABSLT TPS % 20.7
ENG SPEED RPM 2478
CALC LOAD % 17.6
MAF FLOW GR/SE 31.87
MAP KPA 33
COOLANT F 185
IAT F 59
IGN ADVANCE DE 23.5
ST FTRM1 % 0.7
LT FTRM1 % -9.2
VEH SPEED MPH 30
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.070
ST FTRM11 % 1.5
O2S12 V 0.635
MIL DIST mi 0
OBD2 STAT CA/US

Frame 36 Time 24.9

MIL STATUS OFF
ABSLT TPS % 0.0
ENG SPEED RPM 1006
CALC LOAD % 3.9
MAF FLOW GR/SE 6.15
MAP KPA 37
COOLANT F 185
IAT F 60
IGN ADVANCE DE 20.0
ST FTRM1 % -1.0
LT FTRM1 % -11.6
VEH SPEED MPH 13
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.105
ST FTRM11 % 0.8
O2S12 V 0.670
MIL DIST mi 0
OBD2 STAT CA/US

Frame 37 Time 25.6

MIL STATUS OFF
ABSLT TPS % 0.0
ENG SPEED RPM 597
CALC LOAD % 3.1
MAF FLOW GR/SE 5.33
MAP KPA 48
COOLANT F 186
IAT F 60
IGN ADVANCE DE 20.0
ST FTRM1 % 0.0
LT FTRM1 % -11.6
VEH SPEED MPH 3
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.730
ST FTRM11 % 0.0
O2S12 V 0.195
MIL DIST mi 0
OBD2 STAT CA/US

Frame 38 Time 26.3

MIL STATUS OFF
ABSLT TPS % 0.0
ENG SPEED RPM 720
CALC LOAD % 3.1
MAF FLOW GR/SE 5.00
MAP KPA 41
COOLANT F 186
IAT F 60
IGN ADVANCE DE 17.0
ST FTRM1 % 0.0
LT FTRM1 % -9.2
VEH SPEED MPH 0
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.075
ST FTRM11 % 1.5
O2S12 V 0.100
MIL DIST mi 0
OBD2 STAT CA/US

Frame 39 Time 27.0

3100 · #8 01-05-2009, 03:07 PM

map looks ok now, how is it shifting if accelerate normally? (not at wot)

try this engine on in P press the gas pedal to the floor real quick does the rpm needle go to 4000 rpm then kicks back if yes that is normal but if it chokes before that then continues you could have bad tps. Tps could have a glitch at idle should produce about .59V and voltage should increase progresivly on the graph it should look like a nice smooth curve slovly increasing with the rpm. Scope is the best for this but you can use dvom. Do not change any parts yet we are just testing now. Also check your transmission oil level and color. Disconnect your MAF it will choke at the begining when ever you step on the gas but tell me how is your car accelerating with maf disconected?

3100 · #9 01-05-2009, 03:37 PM

also try this this will tell you about your transmission: shift in 3rd go about 35mph then shift into 2nd and see if you can feel the engine braking and increase of rpm, also shift into 2nd and go about 30 shift into 1st and observe the same thing then shift in D go about 50 shift into 3rd in all cases you should feel slowing down and rpm increase if not you have bad clutches in one of the gears. Change your trans oil and see if it helps.

I suggest you buy this http://www.jcwhitney.com/webapp/wcs/...atalogId=10101 for the future it will alow you to change oil from trans and engine within 5 min max. It comes with tubes that can fit inside of your engine and trans dipsitks and suck oil out from both pans. This way I keep my trans oil fresh and change it every year without raising the car.

3100 · #10 01-05-2009, 04:02 PM

Frame 8 Time 5.6

MIL STATUS OFF
ABSLT TPS % 100.0
ENG SPEED RPM 5160
CALC LOAD % 66.2
MAF FLOW GR/SE 18.82
MAP KPA 35
COOLANT F 176
IAT F 66
IGN ADVANCE DE 20.0
ST FTRM1 % -1.0
LT FTRM1 % -7.7
VEH SPEED MPH 40
FUEL SYS 1 CLSD
FUEL SYS 2 N/A
O2S11 V 0.850
ST FTRM11 % -5.1
O2S12 V 0.910
MIL DIST mi 0
OBD2 STAT CA/US

Maf and Map reading are totally wrong on this frame at 5100 rpm your engine is not getting enough air, (only 18 g/s) and at 100% WOT your engine vacuum is about 20inHG like at idle and no load. It is possible that cat is restricted but you said you disconected it after the cat that, you had to do it before the cat. There is a way to test if you cat is cloged by using vacuum pump and measureing vacuum. Check this site on the bottom left for clogged exhaust http://www.users.bigpond.com/ergoff/vac2.htm

shark2000 · #11 01-06-2009, 02:23 AM

It sounds like I here a slight restriction at the cat, but I cant see through it since the top angles up. I was thinking of cutting it off in front of the cat so I can see through it. When sitting in Park, it does rev to 4 g's and back off. I changed the tranny fluid and filter at about 50,000 miles. The tranny has a noisy bearing that whines when driving. This has been happening since around 45,000 miles. It has 82,000 miles now.
I drove to the next town today and it's the same as before. No power on the hills. Little power below 2,000 RPM's. Power surge at 3,000 RPM. Bogs @ 4,000 + RPM's really bad.
I was going to chop off the cat and put a by pass of pipe there and see what happens. I took the cat off, but it was so loud, I wasn't sure what it was doing. It did spin the tires and the low trac light came on. But the noise made it hard to realize if it was running better. I was afraid the cops would hear it and come after me.
The tranny seems to work fine. I will try disconnecting the MAF tomorrow morning. I'll see what happens with that. I will see if I can get a vacuum gauge to try to vacuum test.

3100 · #12 01-06-2009, 04:11 PM

Not sure what year your car is but I assume it is older model that has vacuum modulator.
so check your vacuum modulator if you have one it is possible that the vacuum line going to it is leaking or is not connected or the modulator itself is leaking trans oil....

if your modulator is bad trans will not shift right and will behave just like you explained

xeroinfinity · #13 01-06-2009, 07:25 PM

I would try cleaning the MAF sensor with MAF cleaner see if that helps.

Your black fuel is from over filling your gas tank! The fuel gets sucked into the vents for the charcol canister up front and as its recirculated it contaminates your fuel. Could also faul out your purge valve in the rear by the tank.

Might not hurt to check your fuel pressure, should be 41-47 psi on your 2002. The black fuel also can cause your injectors to operate poorly.

Also test your secondary O2 since youve been running that contaminated fuel. You can reach the connector just behind the engine under the hood. Heres a link with that procedure.
http://www.automotiveforums.com/vbul...d.php?t=672110

shark2000 · #14 01-07-2009, 04:49 AM

I notice the last couple of test drives when I floor it and it bogs, it starts to have that sulfur smell. So I think this is the cat gone bad. I was too busy today to do the checks I was going to do. I'm also waiting for someone to bring me the pressure gauge to test the fuel pressure and a vacuum gauge to check the vacuum.

shark2000 · #15 01-12-2009, 05:24 AM

I disconnected the MAF and it had more power untill about 4000 RPM. It would not go past 4,500 RPM. I connected it back up and it still ran good until about 4,000, but after a little bit, then it started to be sluggish at lower RPM again.

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