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Home >> Isuzu >> 1991 >> Rodeo LS, 4WD, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Basic Testing - EFI >> Idle Speed & Ignition Timing
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Idle Speed & Ignition Timing

For adjustment procedures, see D - EFI ADJUSTMENTS article in the ENGINE PERFORMANCE Section.

IDLE SPEED SPECIFICATIONS

Application Idle RPM
Amigo & Pickup
2.6L (1)(2)(3) 900
Rodeo
2.6L 900
3.1L 800
Trooper
2.6L (1)(2) 900
2.8L (1)(4) 800
(1) Transmission or transaxle in Park or Neutral.
(2) Disconnect fuel pressure regulator Vacuum Switching Valve (VSV). Disconnect and plug canister purge and EGR vacuum lines.
(3) On California models, disconnect and plug vacuum line for EGR vacuum switching valve.
(4) Disconnect distributor set timing connector. Connector is a Black/White wire with White connector, located below tray at rear of center console. If specification varies from underhood Vehicle Emission Label, use specification from label.
IGNITION TIMING (Degrees BTDC@RPM)

Application Base Timing
Amigo, Pickup & Rodeo
2.6L 12 @ 900
3.1L 10 @ 800
Trooper
2.6L 12 @ 900
2.8L 10 @ 800
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