OBD
P2D86
Fuel Temperature Sensor A/B Correlation
What it means
P2D86 means Fuel Temperature Sensor A/B Correlation.
Where it lives
For P2D86, start at the sensor the description names.
Check these first
- Fuel temperature sensor A and B disagreeing
- One fuel temperature sensor drifting
- A wiring fault on sensor A or B
- Air in the fuel system
- Contaminated fuel
What to do next
- Compare fuel temperature sensor A and B on a scan tool
- Inspect the sensor A and B wiring
- Test each fuel temperature sensor
- Bleed air from the fuel system
- Replace the drifting sensor
- Clear the code and retest
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Updated
Generic SAE J2012 definition. Last updated 2026-10-10.