P120E Possible Causes
- Fuel pressure sensor circuit “A” malfunction
- Fuel pressure sensor circuit “A” wiring harness open or shorted
- Poor electrical connection in fuel pressure sensor circuit “A”
How to Fix Code P120E?
Start by checking the “Possible Causes” listed above. Visually inspect the corresponding wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.
Possible Symptoms
- Check Engine Light on (or Service Engine Soon warning light)
P120E Meaning
The Powertrain Control Module (PCM) monitors the fuel pressure sensor circuit “A”. The PCM sets the OBDII code when the fuel pressure sensor circuit “A” does not meet factory specifications.