DTC B2422 KIA
O2 (B1 S1) Circuit Insufficient Activity
O2 (B1 S1) Circuit Insufficient Activity
Description
Engine started, vehicle driven with the throttle open at a speed over 18 mph at light engine load for over 5 minutes, ECT Sensor more than 170ºF, and the PCM detected the O2 signal switched from 0.39v to 0.60v too few times during the Oxygen Sensor Monitor test.
Cause and Solution
Base engine mechanical fault affecting more than one cylinderExhaust leak present in exhaust manifold or exhaust pipesO2 element fuel contamination or has deterioratedO2 signal circuit or ground circuit has high resistancePCM has failed
Video Guide
Diagnostic Info
- DTC Code: B2422
- Brand: KIA