P10D9 Possible Causes
- Faulty fuel rail pressure sensor
- Fuel rail pressure sensor harness is open or shorted
- Poor electrical connection in the fuel rail pressure sensor circuit
How to Fix Code P10D9?
Start by checking the “possible causes” listed above. Visually inspect the corresponding cable harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
Possible Symptoms
Check engine light on (or service engine soon warning light)
P10D9 Meaning
The engine control module (ECM) monitors the signal from the “A” fuel rail pressure sensor. The ECM sets the OBDII code when the “A” fuel rail pressure sensor signal is stuck.