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Quickster2

Can O2 sensor fault cause Valve Lift Control fault?

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Looking for advice on 2012 Cayenne S. Can O2 sensor DTCs cause Valve Lift Control DTCs or vice versa? Can't imagine both O2 and valve lift solenoid "failed" at the same time. DTC's are:

P0133 O2 sensor circuit slow response bank 1 sensor 1

P2097 Post catalyst fuel trim system too rich bank 1

P2195 O2 sensor signal biased/stuck lean bank 1 sensor 1

P1361,62,63 Valve lift control cyl 2, 3, &4

P0302, 303 Misfire Cyl 2 & 3

P0300 Random Multiple misfires

P1372 Valve lift control bank 1

P2a01 Mixture bank 1 implausible

P0172 System 2 rich bank 1

 

Looking to see if there are two faults or what to fix 1st. I originally thought bad gas as the errors happened after a fill up but now have burned thru 3 tanks of gas so ruling that out. 

Just donated need to keep this valuable resource afloat. 

Edited by Quickster2

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Usually more like the other way around.  When the valve lift system goes haywire, you can get strange O2 sensor readings as the mixture has gone off kilter.  Look at the valve control system first.  You may still have a failing O2 sensor, but I rather doubt it.

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Thanks for the reply. My Indie shop has upgraded to a full PIWIS system so I am going to go there.

1st I am going to get a new battery as mine is (after charging) sitting at 12.21 V. Going to check grounds and relearn the necessary systems and clear the faults. 

2nd will be to monitor faults and if they return tackle the valve lift solenoid. 

3rd monitor and go forward.

Again thx

 

 

 

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Hi, I have the same codes relating to the valve lift. i.e. P1361 P1363 P1362 P1373. How did you resolve this issue?

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