OBD-II code · Powertrain (generic, extended)
P2A54 Alternative Fuel Vaporizer A Outlet Temperature Sensor Circuit Intermittent/Erratic
The outlet temperature sensor signal of alternative fuel vaporizer A drops out or jumps intermittently. Loose connector or noisy ground.
Is it safe to drive with P2A54?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySensor connector not seated
- PossibleNoisy ground reference
- Less likelyConnector with intermittent contact under vibration
Repair at a glance
- Difficulty
- Easy
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.3–1.5 h
- Emissions test
- Likely to fail
- Parts involved
- Alt Fuel Vaporizer A Outlet Temp Sensor, Wiring Harness, Afcm
Related codes
- P2A59Alternative Fuel Vaporizer B Outlet Temperature Sensor Circuit Intermittent/Erratic
- P2A5EAlternative Fuel Vaporizer C Outlet Temperature Sensor Circuit Intermittent/Erratic
- P2A51Alternative Fuel Vaporizer A Outlet Temperature Sensor Range/Performance
- P2A52Alternative Fuel Vaporizer A Outlet Temperature Sensor Circuit Low
- P2A53Alternative Fuel Vaporizer A Outlet Temperature Sensor Circuit High
- P2A55Alternative Fuel Vaporizer B Outlet Temperature Sensor Circuit
- P2A56Alternative Fuel Vaporizer B Outlet Temperature Sensor Range/Performance
- P2A57Alternative Fuel Vaporizer B Outlet Temperature Sensor Circuit Low
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.