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1996 GMC C1500 Sierra SL 5.7L MIL Lamp on
vehicle turns on service engine lite,[...] catalyst right bank.i have come to understand that a bad o2 sensor heater might set this code on cold strtup if heater monitor does'nt [...] failure records indicate code was set at cruise speeds under light to modera...
FIX posted 10/1/2000
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Message Closed w/FIX
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Related Documents & Media 
| VIN | 2GTEC19R3T |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / efi,vortec |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Cruise, Intermittently |
Trouble Codes
| P0430 | Catalyst Efficiency Below Threshold (Bank 2) |
Message Closed w/FIX
Vehicle Data
1996 GMC C1500 Sierra SL
| VIN | 2GTEC19R3T |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / efi,vortec |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Cruise, Intermittently |
Trouble Codes
| P0430 | Catalyst Efficiency Below Threshold (Bank 2) |
Video