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1999 Chevrolet C1500 Suburban 5.7L MIL Lamp on
Vehicle came in from another shop running lean, Found fuel pressure below specs, Other shop had put cheap fuel pump in, Customer took vehicle back to them and they put in a/c delco fuel pump. Runs great now but PO420 code keeps returning, Converter back pressu...
FIX posted 10/15/2010
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Message Closed
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32 Replies Received
32 Replies Received
Related Documents & Media | VIN | 3GNFK16R8X |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection / vortec |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Cold, Hot |
Trouble Codes
| P0420 | Catalyst Efficiency Below Threshold (Bank 1) |
Message Closed
Vehicle Data
1999 Chevrolet C1500 Suburban
| VIN | 3GNFK16R8X |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection / vortec |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Cold, Hot |
Trouble Codes
| P0420 | Catalyst Efficiency Below Threshold (Bank 1) |
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