OBD-II code · Powertrain (generic, extended)
P20E5 Exhaust Gas Temperature Sensor 1/2 Correlation (Bank 2)
EGT sensors 1 and 3 on bank 2 disagree by more than the allowed tolerance — one is reading off, or there is a real temperature gradient that exceeds the calibrated map (e.g. from a leaking exhaust joint between the two locations).
Is it safe to drive with P20E5?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyOne EGT sensor drifts
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.5–2.5 h
- Emissions test
- Likely to fail
- Parts involved
- Exhaust Gas Temperature Sensor
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.