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1998 Chevrolet Lumina 3.1L MIL Lamp on
car came in with mil on po401 code. i checked snap on troubleshooter and says that pcm does a test once every ign [...] at 40mph on decel pcm opens egr and checks for map volts to raise.i took a movie and checked map sensor voltage when pcm is testing and does...
FIX posted 4/10/2008
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Message Closed w/FIX
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Related Documents & Media | VIN | 2G1WL52M5W |
| Engine | 3.1 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / sefi |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Always |
Trouble Codes
| P0401 | EGR System Insufficient Flow Detected |
Message Closed w/FIX
Vehicle Data
1998 Chevrolet Lumina
| VIN | 2G1WL52M5W |
| Engine | 3.1 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / sefi |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Always |
Trouble Codes
| P0401 | EGR System Insufficient Flow Detected |
Video