P2A69
Alternative Fuel Rail Pressure Regulator Pressure Sensor Circuit
The AFCM detects a generic fault on the pressure sensor at the inlet of the alternative fuel rail pressure regulator. Regulator inlet pressure cannot be monitored reliably.
- Check engine light: Yes
- Emissions related: Yes
- Repair difficulty: hard
Common causes
Ordered by how often each turns out to be the cause.
- Pressure sensor failedCommon
- Wiring or connector faultPossible
Parts involved
- Alt Fuel Rail Pressure Regulator
- Alt Fuel Pump
- Afcm
P2A69 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.