Hi All,

Thanks in advance for the help.

Have a 95 Jeep Grand Cherokee here. This is an OBD1 car with a single O2 sensor. Car has failed CA emissions 3 times for high NoX

Car has NO EGR or timing adjustment

Car failed smog the first time as follows:

Co2%=...

FIX posted 3/10/2013

iATN Members:
Login to view full TechHelp request
Auto Repair Pros:
Join iATN to read this TechHelp request
Vehicle Owners:
Find a nearby iATN member to repair your vehicle