P0430 Diagnostic Trouble Code Discussion for April 2004
Catalyst System Low Efficiency (Bank 2)
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| Help Request | Posted | |
| 1997 Chevrolet K1500 Suburban LS 5.7L MIL Lamp on VIN: 1GNFK16R2V P0430: Catalyst System Low Efficiency (Bank 2). Hi guys, I have 2 Suburbans like this bugging me at the same time. Both have the same symptoms. The front O2 sensors read fine but on cruise one or both of the after cat O2 sensors are overactive. I can see that the cats are not doing a complete job but why? I... |
April 05, 2004 |
