C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Hard to start when cold, 1989

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Old Sep 9, 2004 | 04:40 PM
  #1  
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JakeB
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Default Hard to start when cold, 1989

My 1989 , automatic, 7,000 miles original, cranks over about 15 - 20 times before it will start (it's worse when cold). I've replaced plugs, wires, distributor cap, rotor, condensor, magnetic pickup, ECM & chip, injectors, pcv valve, fuel filter, air intake cleaner, EGR valve, manifold temp sensor, burn off relay and mass flow relay, checked fuel pump wiring, checked grounds on ECM, checked security theft module.
Fuel pressure of pump was up to specs and holding pressure. Car misfires when cruising. Acceleration is good.
Please write back with suggestions. Have spent a lot of $$$ and I'm getting frustrated. HELP
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Old Sep 9, 2004 | 05:22 PM
  #2  
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JAKE
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From: Kempner Texas
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Have you checked the TPS voltage; coolant temp sensor and MAF? If you have what were the results.?

Any SES error code?

Jake
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