P2A5EAlternative Fuel Vaporizer C Outlet Temperature Sensor Circuit Intermittent/Erratic
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- Needs a drive cycle to confirm a fix
- How the car detects it
- P2A5E marks an unsteady vaporizer C signal: brief dropouts, spikes or a jagged trace that a coolant-heated part cannot really produce. The fault often clears itself and returns, so it matters what conditions trigger it. Gas controllers such as AC STAG store a frozen frame of the moment an error occurs; logging the three outlet temperatures side by side during a test drive shows quickly whether only C misbehaves. Common culprits are a connector that has lost its grip, a pin pushed back in the housing and a cable rubbing against a bracket. CARB requires the detection of such sporadic faults on emission-relevant inputs. No manufacturer documents P2A5E. Until repaired, the gas system may drop out now and then.
- What you may notice
- Check engine light now and then, depending on calibration
- Gas operation drops out occasionally
- Spiky vaporizer C trace in recorded data
- Likely causes
- LikelyConnector of sensor C without firm grip
- PossibleContact pin pushed back in the housing
- PossibleCable rubbing on a bracket
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Usually a job for a workshop.Typical cost: €60 – €450
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.