P1175 BUICK Possible Causes
- Clogged fuel injectors
- Faulty oxygen sensor
- Ignition problem
- Fuel injection problem
- Engine mechanical condition
How to Fix P1175 BUICK 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 warning light soon to be on)
P1175 BUICK Meaning
The fuel cylinder balance diagnostic detects an imbalance in the air/fuel ratio between cylinders and cylinders in each row. The diagnostic monitors the frequency and amplitude characteristics of the pre-catalyst heated oxygen sensor (HO2S) signal by calculating an accumulated voltage over a predetermined sampling period. An imbalance is indicated when multiple samples of the accumulated voltage are consistently higher than the desired value.