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1999 Pontiac Bonneville SE 3.8L MIL Lamp on
Posted to GM Driveability on 10/29/2008 13 Replies

hello, we have this bonneville w/ po171,lean condition. we replaced both o2 sensors,fuel pump&filter,m.a.p sensor,m.a.f. sensor, and can't find any vacuume leaks, exhaust is also new. doe's anyone have any other suggestions. i was laening toward a pressure reg...

13 Replies Received (View Replies)

  Related Documents & Media  1999 Pontiac Bonneville SE

 
Message Closed w/FIX

car Vehicle Data

1999 Pontiac Bonneville SE

VIN 1G2HX52K1X
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / efi
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
Message Closed w/FIX

car Vehicle Data

1999 Pontiac Bonneville SE

VIN 1G2HX52K1X
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / efi
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P0171Fuel System Too Lean (Bank 1)