Quote:
Originally Posted by andrewwynn
OBD emissions issue after EU2? And what is the process? With many e53 at 19-20 yr age, this could quickly become Ve EU popular
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The ability to pass an emission test with EU2 will vary from state to state. Basically, the check engine light does work but it doesn't come on for the bulb check at key-on. Some of the readiness monitors will show 'not present' (EVAP, SAP, CAT, O2 heaters, etc.). Depending on the software the state checker is using, they could show as 'not ready' or 'not present'. States vary in terms of how many monitors can show 'not ready' while still allowing the car to pass. The stricter states will look for that check engine light at key-on, and the EU2 tune won't pass. In the more lenient states, you can pass with EU2 (if you have no trouble codes set) and 3 or 4 monitors 'not ready'.