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Home >> Honda >> 1990 >> Prelude 2.0 S, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Basic Testing - CARBURETED >> Idle Speed & Ignition Timing
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Idle Speed & Ignition Timing

Ensure idle speed and ignition timing are set to specification. For adjustment procedures, see ADJUSTMENTS article.

IDLE SPEED SPECIFICATIONS (1)

Application RPM
Manual Transmission 750-850
Automatic Transmission (1) 700-800
(1) Idle speed is set with headlights and cooling fan off and automatic transmission in Neutral.
IGNITION TIMING (Degrees BTDC @ RPM)

Application Setting
Automatic Transmission
California 8-12 @ 700-800
Federal 13-17 @ 700-800
Manual Transmission
California 15-17 @ 750-850
Federal 18-22 @ 750-850