P1177 AUDI Possible Causes
- Faulty O2 sensor
- Faulty MAF sensor
- Engine vacuum leak
- Lean air/fuel ratio
How to Fix P1177 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
- Check engine light on (or service engine soon warning light)
P1177 AUDI Meaning
O2 Correction Behind Catalyst Limit B1 Reached is the generic description for Audi P1177 code, but the manufacturer may have a different description for your vehicle model and year. Currently, we don’t have more information about the Audi P1177 OBDII code.