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P1189 Diagnostic Trouble Code Discussion for February 2014

Engine Oil Pressure Switch Circuit Malfunction

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Trouble Ticket Help Requests for DTC P1189
Help Request Posted
2000 Chevrolet Malibu 3.1L Poor Idle Quality, Cuts out, Stall VIN: 1G1ND52J3Y
P1189: oil pressure switch circuit. came in for a crank no start. replaced fuel pump and would start and run for a couple of minutes. Then you had to keep it floored at idle to keep it running but would die. The fuel gauge would drop from 3/4 tank to empty when it would act up. Tried disconnecti...
February 24, 2014
2002 Buick Rendezvous CX 3.4L No Start VIN: 3G5DA03E92
P1189: Engine Oil Pressure Switch Circuit Open. Got this vehicle in with blown head gaskets. Repaired as usual. Then murphy's law. No start. We have spark. We have fuel at the regulator. The only code was for an oil sender. Replaced because it was leaking as we don't believe it was the culprit. We are readi...
February 25, 2014