Fuel Cut RPM (3S–GTE and 5S–FE)
INSPECTION OF FUEL CUT RPM
1. WARM UP ENGINE
Allow the engine to warm up to normal operating temperature
2. CONNECT TACHOMETER TO ENGINE
Connect the test probe of a tachometer to terminal
IG (–) of the check connector.
• 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 unit before use.
3. INSPECT FUEL CUT RPM
(a) Increase the engine speed to at least 2,500 rpm.
(b) Use a sound scope to check for injector operating
(c) Check that when the throttle lever is released,
injector operation noise stops momentarily and
HINT: Measure with the A/C OFF.
Fuel return rpm: 3S–GTE 1,600 rpm
5S–FE 1,500 rpm
Does the car run after the ignition is switched off? Could possibly be something in the EGR system or the throttle position sensor.