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Re: 5.9 Cummins Idle Validation Switch
Posted to HD/Fleet Forum on 6/5/2024

This is an update to those who might be still interested in my ongoing issue. I found a diagnostic code 364 in Quickserve that is proper for my problem.

So far I have driven this truck with a one channel scope on the "fuel pump 12v signal" line. It shows ste... Login to read more.