Enter the error code and car brand
Vehicle engine and/or automatic transmission
Code: P1131 - The oxygen sensor (HO2S) after the catalytic converter on engine Bank 1 is not showing normal signal changes.
DTC P1131 BUICK
17.09.2025
6802
1 minute of reading
Video for "Error p1131" on YouTube
The following error codes are often searched for
Comments on the article