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Home >> Mercury >> 1992 >> Topaz LS, 2.3 X, Automatic, ATX >> Repair and Diagnosis >> Engine Performance >> Specifications >> Engine Controls - Specifications - 4-CYL >> Fuel System >> Idle Speed & Mixture
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Idle Speed & Mixture

NOTE: Idle mixture is not adjustable. If idle mixture is incorrect, see appropriate TESTS W/CODES article in the ENGINE PERFORMANCE Section.
IDLE SPEED SPECIFICATIONS

Model RPM
1.8L 750
1.9L 730-830
2.2L 725-775
2.3L (1) 500-800
(1) For M/T vehicles, idle speed is 450-750 RPM.
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