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1995 Chevrolet Blazer 4.3L MIL Lamp on
After repair of vent tube cleared codes, customer took truck. Came back in 17 days later complaining of CEL on. Read codes,[...] checked EGR NO problems found. Cleared codes, Customer came back in 3 daysd later, same codes,[...]. P0401 at 1221 rpm-31 mph.P...
FIX posted 12/15/1999
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Message Closed w/FIX
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Related Documents & Media 
| VIN | 1GNDT13W6S |
| Engine | 4.3 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
Trouble Codes
| P0401 | EGR System Insufficient Flow Detected |
| P1406 | EGR Valve Pintle Position Circuit Malfunction |
| P1442 | EVAP Vacuum Switch Circuit Malfunction |
Message Closed w/FIX
Vehicle Data
1995 Chevrolet Blazer
| VIN | 1GNDT13W6S |
| Engine | 4.3 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
Trouble Codes
| P0401 | EGR System Insufficient Flow Detected |
| P1406 | EGR Valve Pintle Position Circuit Malfunction |
| P1442 | EVAP Vacuum Switch Circuit Malfunction |
Video