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Guest
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On my 1991 318is I can't locate my upstream 02 sensor, did some models not come with one? I have fault code 1222 and wanted to replace my o2 sensor to try and correct it but I can only locate the downstream one underneath the car, should I bother replacing the downstream one?
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08-26-2013, 04:57 PM
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Registered User
Join Date: Jul 2013
Posts: 0
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The downstream one is the only one you have. Upstream and downstream o2 sensors didn't start to about 1996 due to OBD II regulations.
- Kerry |
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08-26-2013, 04:57 PM
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