Fuel Cut System

Install tachometer. Tachometer must be connected to proper terminals. See IDLE SPEED & MIXTURE in articles listed below:
- ADJUSTMENTS - 4-CYL
- ADJUSTMENTS - V6
  CAUTION: Some tachometers may not be compatible with ignition system. Consult tachometer manufacturer before connecting tachometer to system. To avoid possible damage to ignitor and/or coil, DO NOT allow tachometer terminal to become grounded.

Start engine and warm to normal operating temperature. Ensure all accessories are off. Gradually increase engine RPM to maintain at least specified engine speed. See FUEL CUT SYSTEM TESTING SPECIFICATION table.

FUEL CUT SYSTEM TESTING SPECIFICATION

Application	Engine RPM
2.7L	3000
3.0L	2500

Using stethoscope, check for fuel injector operating sound. Ensure when throttle lever is released, fuel injector stops operating momentarily (fuel cut RPM) and then resumes operating (fuel return RPM).
Ensure fuel cut RPM (if available) and fuel return RPM are within specification. See FUEL CUT SYSTEM SPECIFICATIONS table. Shut engine off. Disconnect tachometer.

FUEL CUT SYSTEM SPECIFICATIONS ⁽¹⁾

Application

Fuel Cut RPM

Fuel Return RPM

2.7L

⁽²⁾

1200

3.0L

A/T

⁽²⁾

1500

M/T

⁽²⁾

1300

⁽¹⁾	Check with A/C off.

⁽²⁾	Fuel cut specification is not available from manufacturer.