SanDiegoOverland
NAXJA Forum User
- Location
- San Diego
1992 4.0l aw4 obdI np231 178k
Checked for error codes and got
1-2-2-1-5-5
I know the 55 is the end of the sequence and my book doesn't show code 12 if it exists. Code 21, though, is clearly a failing O2 sensor.
Sound reasonable/plausible? Mine hasn't been changed since i've owned it.
Another thing. I accidentally left off the oil cap after adding a bit of oil at the gas station. The stumbling happened before i realized and replaced it. It has not stumbled since. Coincidence? (i'm thinking probably, never heard of the cap causing that issue.
Would a failing o2 sensor cause a funky exhaust smell, by chance? Mine kinda reeks, lol.
Checked for error codes and got
1-2-2-1-5-5
I know the 55 is the end of the sequence and my book doesn't show code 12 if it exists. Code 21, though, is clearly a failing O2 sensor.
Sound reasonable/plausible? Mine hasn't been changed since i've owned it.
Another thing. I accidentally left off the oil cap after adding a bit of oil at the gas station. The stumbling happened before i realized and replaced it. It has not stumbled since. Coincidence? (i'm thinking probably, never heard of the cap causing that issue.
Would a failing o2 sensor cause a funky exhaust smell, by chance? Mine kinda reeks, lol.