Why am I getting code 54

Asked by JayJay209 Jun 28, 2023 at 12:28 PM about the 1993 Chevrolet C/K 1500 Silverado Extended Cab 4WD

Question type: Maintenance & Repair

I have a 1993 Silverado and I’m getting code 54.
I’ve put a new fuel pump relay and ignition control
module. Truck starts and idles . But still getting
code 54 even after disconnecting battery to reset
code . Any info ?

1 Answer
158,595

James answered about a year ago

This can also be a problem with the oil pressure switch circuit or the ECM itself. Hope that helps! Jim

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