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Subaru
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1991
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XT6 AWD, Automatic
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Repair and Diagnosis
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Engine Performance
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Engine Controls - Adjustments
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Idle Speed & Mixture
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Cold (Fast) Idle
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Notes
Cold (Fast) Idle: Notes
NOTE:
Fast idle on TBI engines is controlled by air control valve. On PFI engines, fast idle is controlled by auxiliary air valve. Adjustment is not necessary on either system.