Fixing The Misfire On The 1993 C4 Corvette

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Even though the engine in this 1993 C4 Corvette is brand new, there has been a nasty misfire since day one of getting it running. In this video we diagnose and solve the misfire. This serves as a reminder, always check your basics!
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I had recently bought a 93 didnt shake but it sure did backfire after getting off the gas near 3k rpm range i ended up having optispark symptoms so i changed it out (MSD OPTI) and no more backfiring, but it shakes a bit at idle, the previous owner did tell me that there is an aftermarket cam in it explains the slight chop to the exhaust

wrongperson
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I have a 1990 Corvette Zr1 and its misfiring. We just replaced the spark plugs recently. The wiring is original and the injectors or original.

shadowsiren
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I have a misfire on my 1991 C4 corvette. I’m going to check to see if I put on the wires to the correct cylinders 😅

Imortaljman
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That Corvette should be pretty quick!!! 😄😄😄

jamespepper