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2003 Cadillac DeVille 4.6L MIL Lamp on
I scope the map sensor and egr signal. It perfect. I wiggle the wires and no changes occur. I test egr system and engine run rough or died when activate egr valve. Test drive vehicle and same code p0401 occur. Next code p0741 ( torque converter ) , would a... 
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Related Documents & Media | VIN | 1G6KD54YX3 |
| Engine | 4.6 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
Trouble Codes
| P0401 | EGR System Insufficient Flow Detected |
| P0741 | TCC Hydraulic Circuit - Stuck Off |
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Vehicle Data
2003 Cadillac DeVille
| VIN | 1G6KD54YX3 |
| Engine | 4.6 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
Trouble Codes
| P0401 | EGR System Insufficient Flow Detected |
| P0741 | TCC Hydraulic Circuit - Stuck Off |
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