Powertrain
Definition only
Lights the check engine lamp
P2A6D: Alternative Fuel Rail Pressure Regulator Pressure Sensor Circuit Intermittent/Erratic
Standardized SAE J2012 code · P2Axx codes
What does P2A6D mean?
The inlet pressure sensor signal of the alternative fuel rail pressure regulator drops out or jumps intermittently. Loose connector or noisy ground.
The code tells you which monitor failed, not which part is broken. Test before replacing parts.
Common causes
- High Sensor connector not seated
- Medium Noisy ground reference
- Low Connector with intermittent contact under vibration
Likelihood is a general estimate across vehicles; your make and model may differ.
Add your car to see reports of P2A6D on the same make and model first.
P2A6D in the community
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