2002 Pontiac Grand Am acting like it's not getting gas

[TIzor82884]

I have a 2002 Pontiac Grand Am and the car is acting like it isn't getting gas when I accelerate. I have replaced the catalytic converter about 22-30,000 miles ago and replaced one of the oxygen sensors. Within the last 6 months have received a new computer on the first visit, then got a tune up with replacement of the spark plugs, wires, coil pack on the second visit, then the third visit (just a few weeks ago) got a new fuel injector. Each time I get a 'Service Engine Soon' light, the code that it throws is P0302. After everything that has been fixed, the car runs fine for a few weeks to a few months lately and then the same code and the same issues. There is 123,000 miles on the car.

 

[melsg5]

sounds like the shop is just guessing whats wrong and replacing parts based on the suggestions below instead of diagnosing the problem, a competent shop should be able to determine if any of those parts were defective before replacing them

http://www.obd-codes.com/p0302


Did they do a compression test on the engine and if so what were the results?

 

[TIzor82884]

I don't think a compression test has been performed. If one has been, I have no idea what the results are of it. And my car has been to 2 different shops, one was a dealership.

 

[melsg5]

any reason why you dont take it back to the dealership and tell them you still have the issue?

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[TIzor82884]

Fed up!!

Because I'm fed up with putting money into the car when the body shops are just guessing at this point!!! I was hoping that someone else was having the same issue and had a fix. There isn't much else to fix besides replacing the engine or transmission or something else very expensive!!!

 

[melsg5]

When you have so many possibilities to throwing that code, one persons fix isnt necessarily going to solve the problem for you. I guess you still havent had a compression test or a fuel pressure test. The shops shouldnt be guessing they should be checking the old part before just slapping in a new one. The dealer at the very least should have the correct diagnostic tools and procedures to resolve it. I would pressure them to resolve the issue which they previously were supposed to correct and then if no resolution in your favor contact GM customer care.

 

[TIzor82884]

This week it was the thermostat sensor. Stay tuned to see what next week brings.

 

[Pontiac2000]

My 2000 Grand Am GT was surging when accelerating on highway ramps, and when going up large hills, like it wasn't getting enough gas. Mass Air Flow Sensor took care of that problem.Don't know if it's the same as your problem.

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