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Is ECM is bad on 1992 3.3L Ciera bad if ignition module just replaced and still stalls out diagnostic code 42?
Wiki User
∙ 11y ago
it could be the ecm or an open or shorted estsignal wire white wire from ecm to ignition module
1993 3.3L V6 (6-204) - Solved intermittent "Code 42 - electronic spark timing" issue by replacing Mass Air Flow sensor, after checking all wires in harness (and replacing some) between the ECM and ICM, checking all connections, and replacing all the other sensors. All work prior to replacing MAF sensor improved performance but did NOT solve intermittent Code 42 problem. Never got a "MAF sensor" Code 34.
Wiki User
∙ 11y ago
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