P1189 Diagnostic Trouble Code Discussion for October 2017
Engine Oil Pressure Switch Circuit Malfunction
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| Help Request | Posted | |
| 2000 BMW Z3 Roadster 2.8L MIL Lamp on VIN: 4USCH3348Y P1189: 02B2S1 Control Deviation. Live data shows 02 sensors to be working - added propane to intake and both sensors go rich. Induced a vacuum leak and they went lean. Smoke test showed a small leak at TB intake boot. Replaced it, cleared codes and they came back. Another smoke test showed no... |
October 11, 2017 | |
| 2000 BMW Z3 Roadster 2.8L MIL Lamp on VIN: 4USCH3348Y P1189: 02B2S1 Control Deviation. Live data shows 02 sensors to be working - added propane to intake and both sensors go rich. Induced a vacuum leak and they went lean. Smoke test showed a small leak at TB intake boot. Replaced it, cleared codes and they came back. Another smoke test showed no... |
October 13, 2017 |
