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Home >> Honda >> 1989 >> Prelude Si, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Basic Testing - Fuel Injected >> 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
Low Altitude 700-800
High Altitude
Manual Transmission 750-850
Automatic Transmission 700-800
Fast Idle
Low Altitude 1000-2000
High Altitude 1100-1900
(1) Idle speed is set with headlights and cooling fan off and automatic transmission in Drive.
IGNITION TIMING (Degrees BTDC @ RPM)

Application Setting
Fuel Injected -
Automatic Transmission (1) 13-17 @ 700-800
(1) Automatic transmission in Drive.
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