Quote:
Originally Posted by Redd
Check the obvious stuff? Ground strap, exhaust ring gaskets. If you already have the stock exhaust back on the car, clear the codes and try driving around without the intake plenum. Simultaneous 8 cylinder misfire is normally an intake-side issue, maybe an air leak.
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Thanks for your answer.
We made a smoke test in the intake, we haven’t seen an air leak somewhere..