P117D VOLKSWAGEN Possible Causes
- Faulty oxygen sensor
- Oxygen sensor wiring harness is open or short-circuited
- Poor electrical connection in the oxygen sensor circuit
- Misfiring cylinder
- Rich/lean air-fuel ratio
How to Fix Volkswagen P117D Code?
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)
P117D VOLKSWAGEN Meaning
The Engine Control Module (ECM) monitors the oxygen sensor in row 3. The ECM sets the OBDII code when the oxygen sensor in bank 3 does not meet factory specifications.