P1189 Diagnostic Trouble Code Discussion for May 2015
Engine Oil Pressure Switch Circuit Malfunction
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| Help Request | Posted | |
| 1999 BMW 328i 2.8L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: WBAAM5333X P1189: B2 02 at limit. ... codes & rough idle when cold. Customer changed MAF & both intake snorkels. It also had multiple 02 codes & various sensor codes from customer tinkering around. I cleared all codes, smoked it & found CCV/oil separtor leaking badly. Replaced ... |
May 08, 2015 | |
| 1999 BMW 328i 2.8L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: WBAAM5333X P1189: B2 02 at limit. ... codes & rough idle when cold. Customer changed MAF & both intake snorkels. It also had multiple 02 codes & various sensor codes from customer tinkering around. I cleared all codes, smoked it & found CCV/oil separtor leaking badly. Replaced ... |
May 11, 2015 | |
| 2003 Chevrolet Malibu 3.1L No Start, no pulse VIN: 1G1ND52JX3 P1189: oil pressure switch circuit. At wits end.Pcm will not pulse injectors to ground.My scope skills are novice at best, mostly as a go-no go guage (is there a signal or not?).Have a 0-5v square wave from cam sensor at pcm,what appear to be good signals from both crank sensors.Am not versed in... |
May 19, 2015 | |
| 2003 Chevrolet Malibu 3.1L No Start, no pulse VIN: 1G1ND52JX3 P1189: oil pressure switch circuit. At wits end.Pcm will not pulse injectors to ground.My scope skills are novice at best, mostly as a go-no go guage (is there a signal or not?).Have a 0-5v square wave from cam sensor at pcm,what appear to be good signals from both crank sensors.Am not versed in... |
May 20, 2015 |
