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2007 Chevrolet Silverado 1500 Classic LT 5.3L Excessive Emissions, Runs rich
Truck came to me with p0101 (maf sensor range) p0172 (too rich bank 1) p0175 (too rich bank 2). Replaced the maf sensor with new delfi unit. P0101 went away but system still way too rich. Swapped map with known good one, no change. Checked fuel pressure, good ...
FIX posted 10/9/2016
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Message Closed w/FIX
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11 Replies Received
11 Replies Received
Related Documents & Media | VIN | 2GCEK13Z97 |
| Engine | 5.3 L / 8 cyl / FLEX |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection / K-1 ran through engine. |
| Emissions | OBD-II Compliant |
| Symptoms | Excessive Emissions, Runs Rich |
| Occurs | Always |
Trouble Codes
| P0172 | Fuel System Too Rich (Bank 1) |
| P0175 | Fuel System Too Lean (Bank 2) |
Message Closed w/FIX
Vehicle Data
2007 Chevrolet Silverado 1500 Classic LT
| VIN | 2GCEK13Z97 |
| Engine | 5.3 L / 8 cyl / FLEX |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection / K-1 ran through engine. |
| Emissions | OBD-II Compliant |
| Symptoms | Excessive Emissions, Runs Rich |
| Occurs | Always |
Trouble Codes
| P0172 | Fuel System Too Rich (Bank 1) |
| P0175 | Fuel System Too Lean (Bank 2) |
Video