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

L98 Engine Won't Start

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Old Jul 28, 2013 | 09:24 PM
  #41  
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Originally Posted by MrWillys
How will this prove it's the diaphragm if the leak is the injectors?
We should move step by step. If the pressure holds, the regulator is bad since it bleeds off the pressure back to the tank. If it doesn't hold, the pressure has to go somewhere so it is probably the injectors.
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Old Jul 29, 2013 | 08:09 AM
  #42  
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Your problem started by adjusting the timing ? Turn it back to where you started and see if it runs.
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Old Jul 29, 2013 | 08:14 AM
  #43  
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Originally Posted by FranksRedC4
Your problem started by adjusting the timing ? Turn it back to where you started and see if it runs.
Timing is not the problem , because The engine will start but will not run or idle without pumping the gas pedal. Besides I adjusted the timing over & over, back & forwards, but same results.
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Old Jul 30, 2013 | 09:27 PM
  #44  
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PROBLEM FIXED! The MAF was bad. I replaced it today and the started smoothly mad idled great. Strang thing was that I never got a diagnostic code. I decided to check it after reading the engine start sequence on www.c4vettes.com. Thanks for everyone's help!
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