Fuel Cut RPM Inspection

FUEL CUT RPM INSPECTION
1. WARM UP ENGINE
- Allow the engine to warm up to normal operating temperature.
2. CONNECT TOYOTA HAND-HELD TESTER OR OBD II SCAN TOOL

(See. step 2 in ignition timing inspection and adjustment)

3. INSPECT FUEL CUT RPM
- Increase the engine speed to at least 3,500 rpm.
- Using a sound scope, 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: 1,400 rpm

4. DISCONNECT TOYOTA HAND-HELD TESTER OR OBD II CIRCUIT OPENING RELAY