Thread: Failed smog, high NO, help!
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rusnak rusnak is offline
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Join Date: Oct 2004
Posts: 15,612
The DME will do a lot to compensate for vacuum leaks, or high fuel pressure, etc. It's amazing really.

I think you have a bad cat. Have you recently overfilled the oil? How old is the O2 sensor? Has the distributor failed in the past?
Old 02-04-2016, 11:10 AM
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