OBD-II code · Powertrain (generic, extended)

P2A52 Alternative Fuel Vaporizer A Outlet Temperature Sensor Circuit Low

Voltage on the outlet temperature sensor signal line of alternative fuel vaporizer A is below the expected window. Wire shorted to ground or sensor short.

Is it safe to drive with P2A52?

Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.

Common causes

  • Most likelySignal wire shorted to ground
  • PossibleInternal sensor short
  • Less likelyConnector pins corroded - high contact resistance

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

Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.