P1158 OBD Trouble Code

1 result found

P1158 - GM
Type Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description

HO2S Shift Rich Conditions

Location Bank 2 Sensor 2
Cause

No PCM codes set, throttle angle from 2-10% in closed loop, then the PCM detected the majority of the HO2S-22 signals were from 729-923 mv for 129 seconds during the test period

Try also: https://www.obd-codes.com/p1158