P0430 Diagnostic Trouble Code Discussion for June 2025
Catalyst System Low Efficiency (Bank 2)
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| Help Request | Posted | |
| 2024 Chevrolet 2500hd 6.6L MIL Lamp on P0430: testing and results. ... 6.6 gas gm? New customer and came in with P0430, running just a little rough. Data stream looks normal, O2's are swinging very well. Side note why can I not find any cars newer that 2021 on here? |
June 18, 2025 |
