Took my 2006 LJR to get smogged today. Mechanic is a friend and hooked up an OBDII scanner before running smog test.
No codes, but says an o2 sensor is in self-test mode (not specified which one) and vehicle will not pass smog in this condition.
Followed advice to drive on fwy for 5 min, let cool down a bit then bring back. Same info.
Says to let sit overnight, then start and let idle to temp and check again to go through cold cycle.
Thoughts?
48,037 miles
No codes, but says an o2 sensor is in self-test mode (not specified which one) and vehicle will not pass smog in this condition.
Followed advice to drive on fwy for 5 min, let cool down a bit then bring back. Same info.
Says to let sit overnight, then start and let idle to temp and check again to go through cold cycle.
Thoughts?
48,037 miles