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1998 Buick Century Limited 3.1L MIL Lamp on
Posted to GM Driveability on 4/25/2011 12 Replies

Car came in with below codes, checked scan data and fuel trims -25% to -30%. Checked usual fuel pressure regulator-ok, pulled PCV and plugged. Still high. Then found in scan data that purge valve was at 20%. I unplugged purge valve connector and fuel trims cam...

12 Replies Received (View Replies)

  Related Documents & Media  1998 Buick Century Limited

 
Message Closed w/FIX

car Vehicle Data

1998 Buick Century Limited

VIN 2G2WY52M9W
Engine3.1 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / SEFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P0172Fuel System Too Rich (Bank 1)
P0440EVAP System Leak Detected
Message Closed w/FIX

car Vehicle Data

1998 Buick Century Limited

VIN 2G2WY52M9W
Engine3.1 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / SEFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P0172Fuel System Too Rich (Bank 1)
P0440EVAP System Leak Detected