FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

Fuel Cut RPM Inspection

- Allow the engine to warm up to normal operating temperature.

Jumper Installation:





- Connect the test probe of a tachometer to terminal IG- of the check connector.

NOTICE:
^ Never allow the tachometer terminal to touch ground as it could result in damage to the igniter and/or ignition coil.
^ As some tachometers are not compatible with this ignition system, we recommend that you confirm the compatibility of your before use.

- Increase the engine speed to at least 2,500 rpm.

Fuel Cut Inspection:





- Use a sound scope to check for injector operating noise.
- Check that when the throttle lever is released, injector operation noise stops momentarily and then resumes.

Fuel return rpm: 1,500 rpm

HINT: Measure with the A/C OFF.