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Old 05-09-2000   #1
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87 GTA Hard Start

I have an 87 GTA that is fairly stock. I have an intermidiate hard-start problem. It does not occur all the time. When the engine is hot or it is hot outside mostly. Never occurs when the temperature is cold or the car is cold. Have replaced fuel-pump, fuel-pump relay, cold-start valve, spark-plugs, wires, used factory and after-market computer chip and still have the problem. At first thought that it was not getting enough fuel but now I am leaning to the idea of too much fuel. I can sometimes smell strong fuel vapors after the hard-start. I have headers with emissions removed and mass air-flow screens removed but did the modifications around the same time so I have no idea if one or the other may have contributed to the problem. The problem is more of an annoyance than anything...anyone with similar problem or suggestions for pin-pointing the problem? My father is a mechanic with 20+ years experience and is running out of things for me to replace on the car!---Need help. Thanks.
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Old 05-15-2000   #2
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Re: 87 GTA Hard Start

Hey bud,
The first thing I have to ask is,have you ever changed the rubber o-rings on your injectors?If not then I would bet money on it that that is your problem.The way you describe it with it only happening when its hot,and you smelling the fuel,I would check there first.Hope this helps you out!


Shiloh
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Old 05-17-2000   #3
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Re: 87 GTA Hard Start

I don't know if this applies to TPI motors or not but on the turbo6 if you remove both screens on the MAF it will give you some drivability problems.I think it has something to do with turbulance of the air entering the MAF if the front screen is removed.I do know people who have done this with no problem but I have had some problems on my TTA's so I now leave the screen in with no loss of power.I am by no means an expert but I hope this helps.
Later,
Steve
89 GTA
TTA#850
TTA#861
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