Fuel Cut Control

FUEL CUT CONTROL




1. Connect the Special Service Tools New Generation Star (NGS) tester to the data link connector 2.
2. Warm up the engine to normal operating temperature and let it idle.
3. Turn off the A/C switch.




4. Select the PID/DATA MONITOR AND RECORD function of the NGS.
5. Select "INJ R" and "INJ L" on the NGS display. NGS measures and shows the fuel injector pulse width.
6. Open the throttle valve and increase the engine speed to 4,000 rpm.
7. Close the throttle valve quickly. Verify that the fuel injector pulse width becomes 0 ms until the engine speed drops to approx. 1,200 rpm, then recovers after that.
8. If not as specified, check voltage at following terminal.
- PCM terminal 3Q (Engine Coolant Temperature Sensor)
- PCM terminal 3X (Closed Throttle Position Switch)
- PCM terminal 4AH, 4AL (Crankshaft Position Sensor)