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levithunder89
Peugeot 308 oxygen sensor heater failure
4 comment(s)
levithunder89 (Author)
Thanks for the quick reply! I haven't checked the sensor resistance yet, but that's a good idea. The error doesn't specify which sensor, just says oxygen sensor heater failure. Is there an easy way to figure out which one it is without specialized tools?
thomas_wolf10
Yeah, it's tricky when it doesn't specify! When mine went, the computer wasn't very specific either. I'd honestly recommend taking it to a workshop. They can pinpoint exactly which sensor is causing the problem with the diagnostic tool. Saved me a lot of headache!
levithunder89 (Author)
Alright, I think I will take it to a shop then. Thanks a lot for the advice! They found that the cable to the oxygen sensor was indeed defective and fixed it for 95€. Hopefully, that will sort it out.
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thomas_wolf10
Hey! I had a similar issue with my 308. It sounds like it could be the oxygen sensor itself. Did you check the sensor resistance? That might give you a better clue if it's faulty. Which sensor is it reporting an error on? Pre-cat or post-cat?