07-18-2017, 10:43 AM | #1 |
Second Lieutenant
93
Rep 291
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Vacuum Pump and Spark Plugs
So I just picked up an X5M. It ran well for along roadtrip. Though the next day I got the CEL P0136 - O2 Sensor Circuit Bank 1 Sensor 2 along with other codes stating a misfire was detected. The car didn’t go into limp mode or anything. The CEL went away that day but reappeared the next day while idling on the driveway from a cold start. The PPI noted that the vacuum pump will need to replaced soon. Could this code be related to that? Or maybe relate to spark plugs which is on my list of things to do. (2011 X5M 75k miles)
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07-18-2017, 12:42 PM | #2 |
First Lieutenant
96
Rep 397
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What is the issue with the vacuum pump, is it leaking?
Is the CEL the same code now? http://www.realoem.com/bmw/enUS/show...diagId=18_0835 Item #3 in the diagram is the O2 going off Are you getting black soot in the rear, any misfires? Could just be the sensor is dead ... |
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07-18-2017, 01:35 PM | #3 | |
Second Lieutenant
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Rep 291
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Quote:
Yes, the same code returned. No black smoke. it’s a little hard to notice black soot since the car is Carbon black. But I’ll wipe the area around the bumper with a white napkin to check. If it’s really misfiring, it’s not noticeable at all. |
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