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

Please HELP !! The rich idle problem is back

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Old Apr 12, 2002 | 02:29 PM
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qkvette
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From: simi valley ca
Default Please HELP !! The rich idle problem is back

I thought I had fix this problem, but it is back. My car is running really rich (BLM 108) and then stalls. I checked the fuel pressure and it holds at 42psi, when you turn-on the key and then drops of to 40 psi. how long should it take for the pressure to drop ? When the car is running the pressure needle is bouncing between 36-38 psi (is this normal ?), and when I disconnect the vacuum it jumps to 42 psi.

There are no codes, and the it seems like the car is stuck in fuel cell 18. :confused:

What do you guys think, is broken ? (new O2 sensors, new opti, new fuel pump)

thanks,

joel
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Old Apr 13, 2002 | 06:51 AM
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Default Re: Please HELP !! The rich idle problem is back (qkvette)

Hmmm, it's stuck in fuel cell 18???? But it only goes to 15! Try reflashing the prom...... blm 108 is bottomed out, try the last prom before the problem and go from there.
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