Tercel Sedan 4-Door L4-1456cc 1.5L SOHC (3E) (1994)
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Engine Control Module: Testing and Inspection
Fuel Cut RPM Test
FUEL CUT RPM INSPECTION
1. Warm Up Engine
Allow the engine to warm up to normal operating temperature.
2. Connect Tachometer
Connect the test probe of a tachometer to terminal 1G of the data link connector 1.
NOTE
^ 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 yours before use.
3. Inspect Fuel Cut Operation
a. Increase the engine speed to at least 2,500 rpm.
b. Check for injector operating sound.
c. Check that when the throttle lever is released, injector operation sound stops momentarily and then resumes.
NOTE
^ The vehicle should be stopped.
^ Accessories switched OFF.
Fuel return rpm: 1,300 rpm
4. Remove Tachometer
