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    2000 C3500 DTC C0503 with no CEL.

    Hello folks, My first post. I have a 2000 C3500 fleet truck 5.7L. I deleted the EVO solenoid when the PS pump failed several months ago. DTC C0503 is present on a scan with NO CEL and will not clear. I tied the solenoid connector back to the harness when I deleted it. Didn't read that a...
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