1986 Iroc z 305 TPI Engine problems!!!!!
03-27-2016, 02:57 PM
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1986 Iroc z 305 TPI Engine problems!!!!!
Hello Everyone long time iroc fan/owner here and i own a 1986 iroc z z28 with a 305 TPI. When i bought the car i had a huge issue with the car running it would drive fine when it is cold and first starts up but when it gets warm the car will put and not let you accelerate at all. it is likee the motor is dying when you hit the gas. It gets zero power. i took it to a shop and they couldn't do much. I am just wondering if anyone has had this same problem on there car?
03-29-2016, 04:38 AM
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Car: 1991 Z28 1LE
Engine: LS1
Transmission: T56
Axle/Gears: 3.42
Re: 1986 Iroc z 305 TPI Engine problems!!!!!
Do an Ohm test on your injectors when cold and when hot. Should be seeing 12-16 on the multimeter.
Could also be ICM related, does it ever shut off and not start until cold again?
Could also be ICM related, does it ever shut off and not start until cold again?
03-29-2016, 09:23 AM
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Car: 1988 GTA
Engine: VIN F 305 TPI
Transmission: AUto
Re: 1986 Iroc z 305 TPI Engine problems!!!!!
Sounds like either a temperature sensor is gone bad, tell in the ecm that the engine is cold and needs to run rich. Also check the cold start injector.
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