Bank 2 Rich Code
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Bank 2 Rich Code
Right, after the change of the 02 sensor in the headers, I cleared the code and had no codes for a few days. I then had a CEL, and the PSI3 showed there was no current code stored but the historic code was P0175,' Bank 2 Sysyem too rich'. I think I have a slight blow on the headers which may be causing the issue, but my main question is where is the bank 2 monitored?
There isnt much Impreza related P0175 feedback on the net, so any help would be well appreciated.
There isnt much Impreza related P0175 feedback on the net, so any help would be well appreciated.
#2
Bank 2 is the LH bank but I believe that is irrelevant as I don't think youv got enough O2 sensors on your car to differentiate. Probably just a generic OBD description. Start by getting an emissions test done to see if it is rich.
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Bank 1 is the first sensor. Bank 2 the second. A blow may cause a problem. As its historic id wait a while. When no1 sensor failed the car probably ran rich leading to sensor 2 showing too rich
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Yeah, I was showing a P0172 Bank 1 Rich CEL with the goosed front sensor. Sensor changed out and it went, to be replaced a few days after by this CEL. I can only think, as the headers had to come off to replace the sensor (long story!) I have an air leak in there somewhere. I can hear a bit of a blow there somewhere at high revs. Time to get back under and tighten up again. Thanks mate!
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