Question about 1992 Chevrolet Corvette

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1992 corvette no comunication between modules replaced ccm with rebuilt ecm checked out good replaced key and ignition but i cant get a vats signal so i can get the key chip. the starter does not ingadge injectors not working . but car will jump and run on eather fuel pressure about 45 to 50 psi at shrader valve all my gadges seem to be working horn and blinkers and lights all work should i do a vats bypass and go remot starter

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I had a similar problem on my 92 LT1 and it turned out to be the opti-spark was bad not signaling the injectors to pulse, if your bypassing the VAT to turn it over then the injectors should fire as well, on the 92 the crank sensor is built into the opti-spark distributor as well, if it turns out to be the opti-spark spring for the MSD sealed and vacuum vented cap or you'll just be replacing the thing every six months, you can test the opti up were it runs into the coil, I dont remeber the exact proceedor but it is on line,

Posted on Oct 16, 2010

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