hocka09
10+ Year Contributor
- 140
- 4
- Aug 8, 2010
-
Macomb,
Michigan
Hey guys,
So as the title says I'm running really lean on idle, like 18.0-20.1, after a hard pull last night and I have no clue why. The wideband is a brand new mtx-l that I just calibrated last week so it cannot be reading wrong. Listening for exhaust leaks I cannot really hear any and the idle feels perfectly normally except for the lean a/f reading that I'm getting. I have ran about 30,000 miles on the front o2 sensor since I have owned it and who knows how many miles before that. Could it be a bad front 02? Also, the wb is in the rear o2 location (no cat), but again, I can't find any exhaust leaks. Thanks for any suggestions!
So as the title says I'm running really lean on idle, like 18.0-20.1, after a hard pull last night and I have no clue why. The wideband is a brand new mtx-l that I just calibrated last week so it cannot be reading wrong. Listening for exhaust leaks I cannot really hear any and the idle feels perfectly normally except for the lean a/f reading that I'm getting. I have ran about 30,000 miles on the front o2 sensor since I have owned it and who knows how many miles before that. Could it be a bad front 02? Also, the wb is in the rear o2 location (no cat), but again, I can't find any exhaust leaks. Thanks for any suggestions!