ANSWERS: 3
-
Potentially the lambda sensor has failed. This is what controls your ecu. Alternatively if the car is fitted with a catalytic converter that is not working
-
If your emissions inspection is anything like PA IM testing you should have received a report telling you why it failed. So, what does the report say? Any stored codes or not ready for testing? Is the MIL illuminated (Malfunction Indicatior Light aka: Check Engine aka: Service Engine)? Did it fail evaporative emissions for a defective gas cap? Red Jeeps don't polute more than green ones :) !!
-
If your check engine light is on it's an instant failure.
Copyright 2023, Wired Ivy, LLC

by 