Sometimes dies. Have replaced coil packs, all vacuum hoses, mass air flow sensor, egr valve and coolant temp sensor.
Did you have it diagnosed by a scanner of some time? Sounds like you are pulling/replace instead of diagnosing the issue prior to fixing. You probably have a bad IAC sensor, but it could also be the throttle position sensor. Do have a check engine light when it does run? How many miles are on the vehicle. it could be a timing issue. I had a 95 Lumina and it turned out to be a sensor, but mileage does play a key in this issue.
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MAF: A Mass Air Flow (MAF) sensor output that causes the PCM to sense a lower than normal air flow will cause a lean condition.
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Air Induction System: Air leaks into the induction system which bypass the MAF sensor will cause a lean condition. Check for disconnected or damaged vacuum hoses, incorrectly installed or faulty crankcase ventilation valve, or for vacuum leaks at the throttle body, EGR valve, and intake manifold mounting surfaces.
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Fuel Pressure: Perform a fuel system pressure test. A faulty fuel pump, plugged filter, or faulty fuel system pressure regulator will contribute to a lean condition.
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Injector(s): Perform injector coil/balance test to locate faulty injector(s) contributing to a lean or flooding condition. In addition to the above test, check the condition of the injector O rings.
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EGR: Check for leaking valve, adapter, or feed pipes which will contribute to a lean condition or excessive EGR flow.
Reviewing the Fail Records vehicle mileage since the diagnostic test last failed may help determine how often the condition that caused the DTC to be set occurs. This may assist in diagnosing the condition.
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