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Well, I pilfered a cat out of the scrap bin at work ( the intake tube had been bent in an accident and the honeycomb looked pristeen) and had a muffler shop weld it in at lunch. I went back for my one and only free retest and FAILED with high NOx. SUCK.
I have been reading a bit, could the high NOx be caused by 14* base timing? It only failed on the 15mph test, I barely passed the 25mph test.
Chris
That does suck. What's your timing at?
Ding Ding Ding Ding we have a winner! :wink: I think there is something to what you have been reading. Set it back to 10* and give it another go! The POS only gets tested at 10*, and with 160,000 on the original :cat: it passes. :wink:Quote:
Originally Posted by Kags1969
Wow that was fast, it's like it never existed, just like that movie :shaking2: ......
PASSED!!! Finally. Turning the timing back to 10* base did the trick for me on the High NOX. Yeah!!!!
Chris
Just make 2 marks on the CAS... One at 10 degrees and one at 14...
Then you can be a Lazy Bastard and reset it without having to dig out the timing light.
:lol: