P1340 Camshaft Position Sensor B Circuit Malfunction
What does P1340 mean on a Ford?
P1340 — Camshaft Position Sensor B Circuit Malfunction. This Ford-enhanced code applies to F-150, Mustang, Explorer with dual cam sensing.
Common causes of P1340
- Failed cam sensor B
- Damaged B circuit wiring
- Oil contamination on sensor B
- Connector fault
- Timing fault affecting bank 2 cam
How to fix P1340
- Compare bank 1 and bank 2 cam signals
- Inspect sensor B for oil
- Check B circuit wiring
- Verify timing components if both banks erratic
- Replace sensor B after circuit checks