1964 Chevy C10, Cummins ISB170, Allison 1000 5 speed, full float 9”, ECU Tune, 5/7” static drop
So I am chasing this 434 code again. Anytime I connect to the ecm via insite, it goes and throws a 434 code and will stay active. I looked in the fault history and it has happened 68 times. Looks like it was an issue before I got the engine. I’ll be on hunt for a ecm seems like. Code goes away after I disconnect my computer. Maybe I’ll be trying the aftermarket Adaptronic one sooner than I thought. Any of you CR engine guys have an idea?