Thread: are Oxygen sensor and Tank Ventilation errors related?
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Old 09-19-2016, 10:38 AM
X53Jay4.8is X53Jay4.8is is offline
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Quote:
Originally Posted by kevinkay View Post
"service engine soon" light, checked codes and had tank ventilation valve and Oxygen sensor errors. Cleared errors and ordered 4 new O2 sensors (about due with 90k on second set).
Error came back -but this time when I checked only "tank Ventilation valve" was present.
I did try re-setting gas tank cap after first Service engine soon light.

away from home and using most basic INAP program on my laptop.

Can a bad 02 sensor affect tank ventilation also or should I replace that too.

thanks!
You are mis interpreting the code. You have a faulty ventilation valve. There is one at the left side rear inner wheel well. I believe its a small electric valve that communicates with the DME and if faulty sets off the code.
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