1997 Isuzu Oasis SFACTORY OEM SERVICE PROCEDURE

Idle Speed & Ignition Timing

Ensure idle speed and ignition timing are set to specification. See IDLE SPEED SPECIFICATIONSΒ  and IGNITION TIMINGΒ  . For adjustment procedures, see the ADJUSTMENTS article. Before checking or adjusting idle, ensure MIL has not been reported on, timing is correct, and that spark plugs, air cleaner and PCV system are okay.

IDLE SPEED SPECIFICATIONS

Application RPM
Odyssey (1) 500-600
(2) 650-750
(3) 720-820
(1) Canadian models.
(2) With Idle Air Control (IAC) valve disconnected, transmission in Neutral or Park and no load (headlights, blower motor, rear defogger, A/C and cooling fan off). On Canadian models, set parking brake and ensure headlights are off.
(3) Turn ignition off and reset PCM by removing BACK UP (7.5-amp) fuse, located in underhood fuse/relay box for 10 seconds. With Idle Air Control (IAC) valve connected, transmission in Neutral or Park and no load (headlights, blower motor, rear defogger, A/C and cooling fan off). On Canadian models, set parking brake and ensure headlights are off.
IDLE CO LEVEL

Application CO Level
Odyssey 0.1%
FAST IDLE SPEED SPECIFICATIONS

Application RPM
Odyssey 1200-1600
IGNITION TIMING - Degrees BTDC - RED MARK @ RPM

Application Specification
Odyssey 13-17 @ 650-750
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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