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P1189 Diagnostic Trouble Code Discussion for March 2007

Engine Oil Pressure Switch Circuit Malfunction


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Trouble Ticket Help Requests for DTC P1189
Help Request Posted
2001 Chevrolet Malibu 3.1L No Start VIN: 1G1ND52J91
P1189: oil pressure circuit returned. ... pressure switch short out the bus line and not start the vehicle.The vehicle returned after we repaired the fuel pump for a no start condition on Jan. 24. found fuel pump bad and replaced. Customer has returned vehicle and still complaines of sometime not ...
March 01, 2007
1999 BMW 528i 2.8L Poor Idle Quality, Misfire, MIL Lamp on VIN: WBADM6331X
P1189: Mfr conrtolled fuel and air metering. this car runs great in open loop, but has a problem as it warms up. misfireing is the only synptom, we used our scope on the primary side of the coils as a starting point, and i noted th amp draw of the coils droped form 7amp to .58amp as soon as the problem s...
March 07, 2007
1999 BMW 528i 2.8L Poor Idle Quality, Misfire, MIL Lamp on VIN: WBADM6331X
P1189: Mfr conrtolled fuel and air metering. this car runs great in open loop, but has a problem as it warms up. misfireing is the only synptom, we used our scope on the primary side of the coils as a starting point, and i noted th amp draw of the coils droped form 7amp to .58amp as soon as the problem s...
March 08, 2007