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87-91 chevy TBI issues, "Code 42"
I found out after 2 replacement distributors in my 87 V10 305 and after preforming all test in shop manual that some aftermarket ignition control modules arent compatible with the ecm-put original icm in replacement distributor and code 42 cleared and has not returned,been told ac delco icm is best- wvsteveg
- Post #42
- Forum: Engine & Performance
