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Home >> GMC >> 1993 >> Yukon V8-350 5.7L >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Relays and Modules - Computers and Control Systems >> Idle/Throttle Speed Control Unit >> Adjustments
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Idle/Throttle Speed Control Unit: Adjustments

Base Idle Speed is not adjustable on this engine and is controlled by the control module.

Refer to FUEL SUPPLY AND AIR INDUCTION/ADJUSTMENT PROCEDURES for adjusting Controlled Idle Speed.