P1147 AUDI Possible Causes
- Faulty HO2S21
- HO2S21 harness is open or short-circuited
- Poor electrical connection in the HO2S21 circuit
How to Fix P1147 AUDI 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
- Engine light on (or engine service warning light soon)
P1147 AUDI Meaning
HO2S21 system too lean is the generic description for Audi P1147 code, but the manufacturer may have a different description for your vehicle model and year. Currently, we have no further information about the Audi P1147 OBDII code.