Code 42 poping and misfire
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Joined: Feb 2005
Posts: 59
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From: Wellington Ohio
Code 42 poping and misfire
I have a 1987 vette it has been switched to the Speed Density 7730 ecm. It has small base distributor out of 90 model with remote coil. Msd box 6421 6a al 2 and msd Blaster ss coil. I am getting code 42 the engine is poping out the thottle body and misfiring out the exhaust like the timing is not adjusting. what would you check first grounds module pickup or wire going to ecm? any help would be apreciated.
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Joined: Mar 2008
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From: High Bridge New Jersey
Code 42
I have a 1987 vette it has been switched to the Speed Density 7730 ecm. It has small base distributor out of 90 model with remote coil. Msd box 6421 6a al 2 and msd Blaster ss coil. I am getting code 42 the engine is poping out the thottle body and misfiring out the exhaust like the timing is not adjusting. what would you check first grounds module pickup or wire going to ecm? any help would be apreciated.
