Quote:
Originally Posted by Anthony1s
Oh hmm. So my Fabspeed DP could be throwing a code and I wouldn't know it.
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I guess you can look at it that way. The on board diagnostics is not that complicated. It just reads the sensors and pops a code when certain conditions are met. Every sensor has a range that's considered normal.
There is at least 40 sensors and they are used for hundreds of checks. In this case the OBD just skips one of the tests.