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P1189 Diagnostic Trouble Code Discussion for January 2012

Engine Oil Pressure Switch Circuit Malfunction

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Trouble Ticket Help Requests for DTC P1189
Help Request Posted
2003 Chevrolet Impala 3.4L Misfire, Pops out intake VIN: 2G1WF52E23
P1189: Engine Oil Pressure Switch Circuit Malfunction. Got this car in the shop, misfiring and poping out the intake, was able to narrow it down to cylinder #2 pull the ign wire off and it will stop poping out intake. Performed a compression test on cyl 2 with 140psi result. I swaped the plug and coil with no chan...
January 21, 2012