Quote:
Originally Posted by W37V
Well... after replacing both nox sensors and resetting adaptations the error is gone.
The weird part was: when I did the 50 min emissions components test, ISTA told me that my front NOX sensor (brand new one that I just installed), was faulty. However, the error still disappeared. There are no current codes.
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Did you run tests on ISTA before you changed NOX sensor, clear codes, shut down and replace it? Codes from previous errors remain after a replacement, but on a test scan would show as "not present." At that point, you can clear codes and then see what comes up so you know what you may (or may not) still have to deal with.