OBD-II code · Powertrain (generic, extended)
P2A59 Alternative Fuel Vaporizer B Outlet Temperature Sensor Circuit Intermittent/Erratic
The outlet temperature sensor signal of alternative fuel vaporizer B drops out or jumps intermittently. Loose connector or noisy ground.
Is it safe to drive with P2A59?
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 B Outlet Temp Sensor, Wiring Harness, Afcm
Related codes
- P2A54Alternative Fuel Vaporizer A Outlet Temperature Sensor Circuit Intermittent/Erratic
- P2A5EAlternative Fuel Vaporizer C Outlet Temperature Sensor Circuit Intermittent/Erratic
- P2A56Alternative Fuel Vaporizer B Outlet Temperature Sensor Range/Performance
- P2A57Alternative Fuel Vaporizer B Outlet Temperature Sensor Circuit Low
- P2A58Alternative Fuel Vaporizer B Outlet Temperature Sensor Circuit High
- P2A5AAlternative Fuel Vaporizer C Outlet Temperature Sensor Circuit
- P2A5BAlternative Fuel Vaporizer C Outlet Temperature Sensor Range/Performance
- P2A5CAlternative Fuel Vaporizer C Outlet Temperature Sensor Circuit Low
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.