Skylark L4-138 2.3L DOHC VIN D MFI QUAD 4 (1989)
Air/Fuel Mixture: Specifications
Air Fuel mixture is controlled by the Powertrain Control Module (PCM) and is not adjustable.
Buick Workshop Service and Repair Manuals
Accelerator Controls <--> [Accelerator Pedal] >
< Idle Speed|Page 2974
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