91 honda accord with code 43, wont go over 20 m.p.h.

[eelci]

has no power, wont go over 20 mph, code 43 in computerin park it wont rev up over 2500 it starts droppings and as it drops it sounds like it starts missing, also a little blue smoke from tail pipe when reved up

[accordztech]

00
ECU
Defective ECU

01
Primary O2 sensor
Open or short in O2 sensor circuit, defective Primary O2 sensor

02
Secondary O2 sensor
Open or short in O2 sensor circuit, defective Secondary O2 sensor

03
Manifold Absolute Pressure sensor
Open or short in MAP sensor circuit, defective MAP sesnor

04
Crankshaft Position sensor
Timing belt slipped, defective CP sensor

05
Manifold Absolute Pressure sensor
Reading too low or too high, defective MAP sensor

06
Engine Coolant Temp circuit
Reading too low or too high, open or short in circuit, defective ECT circuit

07
Throttle Position circuit
Reading too low or too high, open or short in circuit, defective TPS circuit

08
Top Dead Center sensor
Open or short in TDC sensor circuit, defective TDC sensor

09
Cylinder Position sensor
Open or short in CYP sensor circuit, defective CYP sensor

10
Intake Air Temperature sensor
Open or short in IAT sensor circuit, defective IAT sensor

12
Exhaust Gas Recirculation Valve
Open or short in EGR valve circuit, defective EGR valve

13
Barometric Pressure sensor circuit
Defective ECM (Barometric sensor)

14
Idle Control System Malfunction
Defective IAC valve, defective fast idle thermo valve, throttle body

15
Ignition Output Signal
Missing, defective or noisy Ignition Output Signal

16
Fuel Injector System
Defective or malfunctioning Fuel Injector System

17
Vehicle Speed sensor circuit
Open or short in VS sensor circuit, defective VS sensor

19
Lock-up Control Solenoid
Open or short in LCS circuit, defective LCS solenoid

20
Electrical Load Detector circuit
Open or short in ELD circuit, defective ELD circuit

21
VTEC Solenoid Valve
Open or short in VTEC solenoid valve circuit, defective VTEC solenoid valve

22
VTEC Oil Pressure Switch
Open or short in VTEC OPS circuit, defective VTEC pressure switch

23
Knock sensor circuit
Open or short in Knock sensor circuit, defective Knock sensor circuit

30
A/T FI Signal A high/low input
Defective AFSA line, TCM

31
A/T FI Signal B high/low input
Defective AFSB line, TCM

41
Primary Heated O2 sensor heater circuit
Open or short in Primary O2 sensor heater circuit, defective Primary O2 sensor heater circuit

43
Fuel Supply System
Defective or malfunctioning Fuel Supply System

45
System too lean/rich
Fuel supply system, Primary O2 sensor, MAP sensor, contaminated fuel, valve clearance, exhaust leakage

48
Lean Air Fuel sensor
Open or short in Lean Air Fuel sensor circuit, defective Lean Air Fuel sensor

54
Crankshaft Speed Fluctuation sensor
Open or short in CKF sensor circuit, defective CKF sensor circuit

58
Top Dead Center sensor #2
Open or short in TDC sensor circuit, defective TDC sensor

61
Primary Heated O2 sensor
Slow response, exhaust leak, defective Primary Heated O2 sensor

63
Secondary Heated O2 sensor
Slow response, exhaust leak, defective Secondary Heated O2 sensor

65
Secondary Heated O2 sensor circuit
Open or short in Secondary Heated O2 sensor circuit, defective Secondary Heated O2 sensor circuit


__________________

diag ur fuel system. check pump for voltage and shit, fuel pressure etc...

[accordztech]

www.cb7tuner.com go there if u want more help. its 90-93 accord based.

[kings_blend]

arrrggg u beat me to him anyway here it is again

Fuel Supply System
defective or malfunctioning fuel supply system
hahahaaaaaaa

[eelci]

i know that code 43 is fuel system problem but it has good fuel pressue and flow, air filter is good is it possable converter cloged?

[Hondaman56]

How did you check your incoming fuel flow and pressure? If you did it at the banjo connection on the tank side, you could have a cloged up or collapsed fuel filter.

[eelci]

i checked fuel pressure at the pump, i had replaced fuel filter and air filter. there is no change. i'm going to drop the exust and see what happens

[accordztech]

how did u check it at the pump?

u check it in the engine on the service bolt.

its not the exaust, all u will get is a loud sound. if it was clogged it would just flow and not filter.

i think the psi the fuel is at should be umm 28 to 35 psi i think....get a hold of a helms manual. or haynes or whatever, they tell you how to diagnose the system.

can be anything along that fuel system, including injectors.

Blue smoke sucks. i forgot if that was rings bad or something else, i think white smoke is burning oil...but i forgot what blue was.

check your timming.

[eelci]

Also I Did Check Pressure At Fuel Rail It Was Ok, I Talked To The Owner Of The Car And I Asked If It Has Been Using Oil They Said They Have To Add 1 To 2 Quarts A Week, I Did Read Some Were That If The Pcv Valve Sticks Open It Will Use That Much Oil And It Will Distroy And Clog The Converter. At The Tail Pipe The Is Barely Any Exust Coming From It Plus No Sound At All. And They Did Say It Was Louder When They Bought It, So I Cant Loose Anything By Loosing The Bolts At The Pipe To Manifold And Run It, Who Knows? When I Hold It To The Floor It Only Gos To 2500 Rpm Then Drops It Sounds Like The Valves Are Floating. I Heard The Same Sound On American Cars With Cloged Converters Before.

[accordztech]

i never heard of the converter but if u wanna try it, go for it.

i wonder how is the compression in the engine. change that pcv if u wish. but it wont clogg the converter cause really its just exitingi vapors in the valve cover at a pulse rate. if it is fullyopen your idle will go up and down. if its closed i forgot...

id take it in for a diagnostic. i have an idea on my head but i cant put my finger on it...

i wonder about the injectors...but try things man, maybe it will shape up =)

[eelci]

well guys car is fixed removed converter and put test pipe on, now it runs great, the converter was restrected, so now you heard it. thanks anyway

[accordztech]

wtf...thats crazy. hahah thats actually funny. im surprised....well thanks for setting things straight. good luck. watch for emmisions though hahaha...

[Hondaman56]

Good detective work. Thats very common on BMW's but not on Hondas. Cat Converters are an expensive part new, so try salvage yards and see if you can get a used one.

[mwenz33]

BTW.. white smoke is water/coolant.. blue is oil.