Greetings all,

We have a regular customer here that has a 1988 Cavalier 2.0L, M/T, VIN (1) that had a pre-test done and failed due to high HC & NOx.

Pre-test ASM was:

15 MPH: 14.2% CO2, 0.6% O2, 263PPM HC, 0.39% CO, 2335 PPM NOx

25 MPH: 14.7% CO2, 0.2%... Login to read more.