P2086Exhaust Gas Temperature Sensor Circuit Range/Performance (Bank 2 Sensor 2)
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Needs a drive cycle to confirm a fix
- How the car detects it
- P2086 would report an implausible reading from the second exhaust temperature sensor on bank 2. Snap-on's code list confirms the wording. No manufacturer document available to us uses the code: GM, Ford and VW keep all diesel sensors on bank 1, Nissan's per-bank petrol layouts stop at sensor 1, and Ford's 2014 petrol list jumps from P2085 to P2088. Do not confuse it with the third sensor on bank 1: Ford's 6.7 L diesel checks sensors 1 to 4 against each other under P2080, P2084, P242B and P246F, with P24C2 for a multi-sensor mismatch. Bank 2 sensor 2 only makes sense with two separate exhaust trains that each carry a catalyst. CARB still requires a rationality check for every emission-relevant temperature input. The nearest documented analogue is P2084 on bank 1.
- What you may notice
- Engine warning lamp on
- Catalyst or filter protection functions limited
- Likely causes
- LikelyBank 2 downstream sensor aged or sooted, reading off
- PossibleSensor loose or not reaching into the gas stream
- RareLeak in the bank 2 exhaust ahead of the sensor
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Often possible to do yourself.Typical cost: €60 – €350
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.