I have changed O2 sensors, swapped ECU and played with the adjustment on the ECU and been able to get the HCs down to 117 PPM, right at the threshhold of passing (118 fails @ 15 MPH) and 1.9% COs, down from 3.15 to 3.25 per cent, so I'm under the 2+ per cent g...

FIX posted 12/21/2013

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