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)