
1995 Buick Riviera 3.8L MIL Lamp on
Hello all. Hopefully some one can point me in the right direction. The two codes that keep returning seem to be at the same time. Performed flow chart testing for both codes but only the EGR test was definitive in failing the part but the EGR has been replaced...
FIX posted 6/17/2009
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Message Closed
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VIN | 1G4GD2211S |
Engine | 3.8 L / 6 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI / sefi |
Emissions | OBD-II Compliant |
Symptoms | MIL Lamp On |
Occurs | Not Applicable |
Trouble Codes
P1406 | EGR Valve Pintle Position Circuit Malfunction |
P1640 | Output Driver Module 'A' Circuit Malfunction |
Message Closed
Vehicle Data
1995 Buick Riviera
VIN | 1G4GD2211S |
Engine | 3.8 L / 6 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI / sefi |
Emissions | OBD-II Compliant |
Symptoms | MIL Lamp On |
Occurs | Not Applicable |
Trouble Codes
P1406 | EGR Valve Pintle Position Circuit Malfunction |
P1640 | Output Driver Module 'A' Circuit Malfunction |