Quote:
Originally Posted by Bill
A number would be great Tom. Been fighting this for almost a year. the current problem is NO2 last test was 770 ppm and spec has been lowered to 541. I cleaned up a pretty severe vacuum leak and things look much better. I just hate throwing away $50 to fail again
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With NO2 high could be the EGR is not opening. With it not opening the burn temps will be too high creating more NO2. You could force open the ERG to see.
Problem of course is you need a sniffer to tell you when you've got it.
That will be shop time.