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09-29-2006
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#1 |
Join Date: Aug 2006
Location: San Diego, CA
Posts: 24
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Re: HELP! secondary/fuel problem
A week at "The Corvette Shop" in San Diego and $1200 showed the problem to be a bad coil pack. Replaced all 4 coils. She seems fine now.
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10-03-2006
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#2 | |
 
Join Date: Oct 2004
Location: Woods Cross, UT
Posts: 389
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Re: HELP! secondary/fuel problem
Quote:
Wow...$1200! Next time buy the manuals and do it yourself...it's not that big of a deal to pull the plenum. About 3 hours and you would have been done....and for the price of 4 coil packs (~$40 each). you can usually even reuse the gaskets. If you need help with it...just ask us. :-) We are here to help! |
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10-05-2006
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#3 |
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Join Date: Aug 2006
Location: San Diego, CA
Posts: 24
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Re: HELP! secondary/fuel problem
Forgot to mention: I bought a fuel pressure regulator from GMpartsdirect.com for $125 and had them install it at the shop. Now the pressures test at 62psi with pumps on and 52psi with pumps off.
Anyway, it seems to be running fine now. |
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10-05-2006
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#4 |
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Join Date: Aug 2005
Location: Fishers, IN
Posts: 812
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Re: HELP! secondary/fuel problem
That's a little high. The car must be running rich now. Stock calibration is expecting 51-55 psi, so 62 psi going to result in too much fuel delivered. The stock cals are typically already rich, even at stock pressure.
todd |
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10-07-2006
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#5 |
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Join Date: Aug 2006
Location: San Diego, CA
Posts: 24
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Re: HELP! secondary/fuel problem
More info: With engine running, pressure is at 52psi and steady. All seems well for now. Thanks for your input.
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