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Home >> Subaru >> 1989 >> RX Automatic >> Repair and Diagnosis >> Engine Performance >> System >> System/Component Tests >> Idle Control System >> Dashpot >> Justy & MPFI

Justy & MPFI

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  1. Warm engine to operating temperature. With transmission in Neutral, open throttle until dashpot is fully extended.
  2. Allow throttle to slowly close. Ensure dashpot end contacts throttle lever between 2200-2400 RPM on Justy or 2800-3400 RPM on MPFI engines. If not, loosen locknut and adjust dashpot.
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