thegoon543
Well-Known Member
- Joined
- January 24, 2000
- Messages
- 189
- Reaction score
- 0
- City, State
- Cary, NC
- Year, Model & Trim Level
- '10 Escape Hybrid Limited
i recently have been getting 3 trouble codes; only one of which is a legitimate one:
p1131 - o2 sensor bank lean
p0000
p0000
there is hesitation during idle and across all speed ranges (particularly @ highway speeds). using my ScanGauge II I was able to view the o2 sensor readings and its puzzling me. some days (after it warms up) it can't seem to figure out proper air/fuel mix and appears to "go on strike." one sensor will give me a very high reading (.7v or higher) and the other will read low (.1 or lower). the funny thing is that its never the same o2 sensor going high or low. it usually alternates sensors back and forth after each cold start (typically every day) but still the same symptoms appear.
does this seem to pin down any 1 issue? my semi-educated guess would be that either the EGR and/or DPFE are bad, but my lack of knowledge on the subject would pretty much have me trial and error my way out of it. i just bought an egr from autozone, but they told me if i installed it, i couldn't return it so i'd like to narrow it down if possible.
p1131 - o2 sensor bank lean
p0000
p0000
there is hesitation during idle and across all speed ranges (particularly @ highway speeds). using my ScanGauge II I was able to view the o2 sensor readings and its puzzling me. some days (after it warms up) it can't seem to figure out proper air/fuel mix and appears to "go on strike." one sensor will give me a very high reading (.7v or higher) and the other will read low (.1 or lower). the funny thing is that its never the same o2 sensor going high or low. it usually alternates sensors back and forth after each cold start (typically every day) but still the same symptoms appear.
does this seem to pin down any 1 issue? my semi-educated guess would be that either the EGR and/or DPFE are bad, but my lack of knowledge on the subject would pretty much have me trial and error my way out of it. i just bought an egr from autozone, but they told me if i installed it, i couldn't return it so i'd like to narrow it down if possible.