P0420 Diagnostic Trouble Code Discussion for July 2020
Catalyst Efficiency Below Normal (Bank 1)
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| Help Request | Posted | |
| 2013 Chevrolet Captiva Sport LTZ 2.4L Poor Idle Quality, Surge, MIL Lamp on VIN: 3GNAL4EK7D P0420: Catalyst system low performance. ... really bad at idle in gear once warmed up. Customer purchased this from a used car lot that we found out later did the aforementioned work. It came in originally with a complaint of stalling when coming to a stop and crazy erratic idle. At startup ... |
July 29, 2020 |
