P0420 Diagnostic Trouble Code Discussion for August 2024
Catalyst Efficiency Below Normal (Bank 1)
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| Help Request | Posted | |
| 2010 GMC Acadia SLT 3.6L Poor Idle Quality VIN: 1GKLVNED3A P0420: Catalytic efficiency. Hello everyone, Happy Friday. I got this Acadia that's kicking but butt. The thing is that the solution may be staring right at me but I don't seem to see it. This vehicle has no power at all as if the VVT's are not working or it jumped the timing chain... |
August 16, 2024 |
