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#1
06-08-2008, 01:15 PM
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Cannot hold an idle - Keeps dying
Hello,
I have a 2000 Pontiac Grand Prix 3.8L Supercharged (GTP) that just stopped on the highway. No signs at all, it just died. Now it doesn't want to stay on when I turn it over. The car goes on and then just shuts off, it doesn't stay idling. If I floor the gas it stays on but if I try to hold it at about 2000 RPMS it also dies. I have replaced the fuel filter, fuel pump, regapped the spark plugs and there are no DTC codes. I also checked for spark at the coils and they have spark. During the process my battery died one morning and I have replaced that also. I have checked all of my vacuum lines and they all seem to be fine. I have also removed my TPS, MAF, IAC and IAT to spray them down. Now since I don't have any codes, what should I do next? I am really at a lost here, please help me out. Thanks 
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#2
06-08-2008, 02:53 PM
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Re: Cannot hold an idle - Keeps dying
Based on your symptoms unless you did it earlier try bypassing the fuel pump resistor. See link below.
Click here Another possibility is a bad MAF sensor. So disconnect it (ignition to off first) and then see how driveability is. And welcome to AF.
__________________
'08 Pontiac Grand Prix GXP (Dark Slate Metallic) - LS4 5.3L V8 '02 Oldsmobile Alero GL2 - LA1 3400 V6 '99 Buick Regal LS - L36 Series II 3800 V6 '03 Honda CR250R MX - 2 Stroke 250cc '97 Pontiac Grand Prix GTP - L67 Series II 3800 V6 Supercharged (Sold) Timeslip 08/12/06 AF Community Guidelines
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#3
06-08-2008, 04:04 PM
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Re: Cannot hold an idle - Keeps dying
Thanks BNaylor, I immediately tried editing (bending) the relay and turned the car on and it stood running, so off to order a new FUEL PUMP RESISTOR...
Well at least now I have a new fuel filter, fuel pump and fuel pressure tester. Thanks again BNaylor
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#4
06-08-2008, 11:30 PM
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Re: Cannot hold an idle - Keeps dying
Bob, just wondering if you know any good sources for a fuel pump resistor?
__________________
-2000 Grand Prix GTP 170,000mi (daily driver) -2000 Olds Alero 100,000mi (soon to be DD with gas at $3.45/gal) -1997 Chev K1500 4x4 115,000mi (Natalie's truck [nans_grandprix]) AF "2.0" Community Guidelines Conservative Victory 2012!!! "I'll Keep my Guns, Freedom, and Money. You can Keep the Change!" ----->>>>> Did You Know? <<<<<-----
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#5
06-08-2008, 11:53 PM
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Re: Cannot hold an idle - Keeps dying
Quote:
Click here
__________________
'08 Pontiac Grand Prix GXP (Dark Slate Metallic) - LS4 5.3L V8 '02 Oldsmobile Alero GL2 - LA1 3400 V6 '99 Buick Regal LS - L36 Series II 3800 V6 '03 Honda CR250R MX - 2 Stroke 250cc '97 Pontiac Grand Prix GTP - L67 Series II 3800 V6 Supercharged (Sold) Timeslip 08/12/06 AF Community Guidelines
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#6
06-09-2008, 01:29 AM
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Re: Cannot hold an idle - Keeps dying
Hmmm, thanks! I was just wondering as its probably among the next to be replaced on my GTP.... I've had all the other GP notorious problems, why stop now?
__________________
-2000 Grand Prix GTP 170,000mi (daily driver) -2000 Olds Alero 100,000mi (soon to be DD with gas at $3.45/gal) -1997 Chev K1500 4x4 115,000mi (Natalie's truck [nans_grandprix]) AF "2.0" Community Guidelines Conservative Victory 2012!!! "I'll Keep my Guns, Freedom, and Money. You can Keep the Change!" ----->>>>> Did You Know? <<<<<-----
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#8
09-02-2008, 01:39 PM
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Re: Cannot hold an idle - Keeps dying
Quote:
__________________
2005 Grand Prix GT  3800 1995 Chevy Caprice LT1 5.7 1986 Dodge Ram 
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