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2012 Chevrolet Silverado 2500 HD LT 6.0L No Start, Poor Idle Quality, Stall
unit was towed in. cold start unit starts and runs good. till o2s warm and activate. then short and long fuel trims go to -30% then starts popping thru intake and dies. does not smell rich. seams like its starting at good trims then ecm drives it lean. cle...
FIX posted 8/25/2025
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Message Closed w/FIX
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16 Replies Received
16 Replies Received
Related Documents & Media | VIN | 1GC1KXCG8C |
| Engine | 6.0 L / 8 cyl / FLEX |
| Trans | 6-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Emissions | OBD-II Compliant |
| Symptoms | No Start, Poor Idle Quality, Stall |
| Occurs | Always |
Trouble Codes
| P0132 | Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit High Voltage |
| P0134 | Air Fuel Sensor (Bank 1 Sensor 1) Heater System Malfunction |
| P0138 | Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit High Voltage |
| P0152 | Heated Oxygen Sensor (Bank 2 Sensor 1) Circuit High Voltage |
| P0154 | Air Fuel Sensor (Bank 2 Sensor 1) Heater Circuit Malfunction |
Message Closed w/FIX
Vehicle Data
2012 Chevrolet Silverado 2500 HD LT
| VIN | 1GC1KXCG8C |
| Engine | 6.0 L / 8 cyl / FLEX |
| Trans | 6-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Emissions | OBD-II Compliant |
| Symptoms | No Start, Poor Idle Quality, Stall |
| Occurs | Always |
Trouble Codes
| P0132 | Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit High Voltage |
| P0134 | Air Fuel Sensor (Bank 1 Sensor 1) Heater System Malfunction |
| P0138 | Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit High Voltage |
| P0152 | Heated Oxygen Sensor (Bank 2 Sensor 1) Circuit High Voltage |
| P0154 | Air Fuel Sensor (Bank 2 Sensor 1) Heater Circuit Malfunction |
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