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1996 Buick Roadmaster Collector's Edition 5.7L Lean at Idle
Posted to GM Driveability on 10/19/2004 8 Replies

This is a well maintained unit It came in for CEL and I found PO174. Replace O2 sensor and the light has not reset but if you watch the fuel trim it is always adding fuel at idle, and especially bank 2. At cruise, the trim will fall to +- 2 % stft and bank 1 L...

8 Replies Received (View Replies)

  Related Documents & Media  1996 Buick Roadmaster Collector's Edition

 
Message Closed w/FIX

car Vehicle Data

1996 Buick Roadmaster Collector's Edition

VIN 1G4BT52P7T
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SEFI
EmissionsOBD-II Compliant
SymptomsLean at Idle

Trouble Codes

P0174Fuel System Too Lean (Bank 2)
Message Closed w/FIX

car Vehicle Data

1996 Buick Roadmaster Collector's Edition

VIN 1G4BT52P7T
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SEFI
EmissionsOBD-II Compliant
SymptomsLean at Idle

Trouble Codes

P0174Fuel System Too Lean (Bank 2)