98 gtp starting problemsy

[chuckbattams]

My gtp starts runs for 5 seconds then quits. Where do I start???

[dsmuts]

fuel pump resistor

[rperry435]

Yup. Either get a new one or just cut it out and solder/connect the wires together. :thumbup:

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[94GrandPrixSE]

fuel pressure regulator

[chuckbattams]

Thanks guys, will be on it in the morning, learned its under the passenger front fender.

[dsmuts]

Pull the resistor out of the fuse box and bend out tab 85 or whichever one it is and put the resistor back in.

[BillBoost37]

LOL... Dan means..pull the fuel pump speed relay out of the underhood fues box and bend out tab 85 so it won't hit anything. Problem fixed.

When GM fixes the resistor. They leave the original one where it is and put the new one in the middle of the firewall behind the motor.

[dsmuts]

Bill knows what I mean lol

[BillBoost37]

Which is why I'm going to make you find the picture for him.

[dsmuts]

I'm on my phone right now I can't lol

[BillBoost37]

I gotta do everything

[dsmuts]

Thanks bill you're the bestest

[chuckbattams]

Thank you gp'rs. I was just talking with the wife this morning,she told me the car will not start anymore I will be home Thursday, so I will do the tab bending then, I assume it is a short term fix till I get a new one,right?

[hammygtp]

your gas mileage will drop drastically.

[Scottydoggs]

your gas mileage will drop drastically.

it will, never heard this one before.

bending the tab puts the pump in high speed mode, the engine cant take more fuel then it wants, so not like its getting over fueled.

people here have just left it like that for ever, me, i'd get a new resistor just to be safe, and not burn the fuel pump up possibly.

[BillBoost37]

your gas mileage will drop drastically.

ANNNNNNT try again. I currently get 23mpg driving 20 miles each way to work and doing 80mph doing that stretch. Otherwise I'm all around town. If you were correct, then my mileage should shoot up to say 40mph if I fixed my resistor.

The pressure regulator dumps the extra fuel back into the tank and most fuel pumps in the majority of cars out there run full time. There is a slight difference in programming of running the pump full power vs partial, but your pcm will take care of that for you if you don't retune the car.

[chuckbattams]

that's alright Scottydoggs, I replaced it with a new/old one from my 98 1/2 ton GM truck, same numbers, and it works great.

[JoshsGTP]

MPG will NOT DROP! Ive done this too!