Fuel Cut RPM Inspection

FUEL CUT RPM INSPECTION
1. WARM UP ENGINE.
- Allow the engine to warm up to normal operating temperature.
2. CONNECT TACHOMETER TO ENGINE.



- Connect the tester probe of a tachometer to terminal IG (-) of the DLC1.

3. INSPECT FUEL CUTOFF OPERATION.
- Increase the engine speed to at least 2,500 rpm.



- Check for injector operating noise.
- Check that when the throttle lever is released, injector operation noise stops momentarily and then resumes.
HINT: Measure with the A/C OFF.

Fuel return speed: 1,500 rpm

4. DISCONNECT TACHOMETER.