Quote:
Originally Posted by schriss
In this case I would assume that ppm will be increasing slowly and that means nox cat becomes "dirty" and needs regen. After regen done, sensor should "see" less nox ppm than before.
If that's what happens, then simply coding a new nox cat will not help, because all of that nox ppm will just fly through the cat not neutralized and sensor will still see higher than usual nox ppm.
Which is not great because that's exactly what I did - coded new nox cat without replacing anything yet.
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you could survive couple of weeks...depending on your driving style...as highest nox values are produced by switching to stratified...so if you will give it a go in homogenous than the nox sensor might not alarm ecu. Also..try to do a forced regeneration of nox cat through inpa/ista 2-3times (after say 300-400miles)