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

emissions revisited

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Old Dec 28, 2006 | 11:13 PM
  #1  
nyernga's Avatar
nyernga
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Drifting
 
Joined: Dec 2003
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From: Conyers Ga
Default emissions revisited

I posted 2 weeks ago about failing the emissions test on CO. The car is running very rich. Well it's been in the shop since tuesday and my mechanic has it hooked up to the diagnostics computer. He said the timing was way off so he set it to specs. The car starts much quicker now but it runs like cr*p according to him. He asked me if I had the original chip but the hypertech chip I installed 5 years ago is all I have and besides, the car has passed the last 5 years with the HT chip.
No vacum leaks, injectors are ok...............any ideas?
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Old Dec 29, 2006 | 03:34 AM
  #2  
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RRT vette
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From: Louisiana
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Is there anyway you can post the engine diagnostic scan numbers? Hard to say from the description.
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