Fuel Cut Control System Inspection

Warm up engine and idle it.
Turn off the electrical loads and A/C switch.
Connect the M-MDS or equivalent to the DLC-2.
Access RPM PID.
Listen for the fuel injector operation sound at all cylinders using the sound scope and monitor both PIDs while performing the following steps:
1. Depress the accelerator pedal and increase the engine speed to 4,000 RPM .
2. Quickly release the accelerator pedal (brake pedal is not depressed) and verify that the fuel injector operation sound stops, and starts again when the engine speed drops below 2,200 RPM .
  - If not as specified, inspect the following:
    - ECT sensor and related wiring harness
      (See ENGINE COOLANT TEMPERATURE (ECT) SENSOR INSPECTION ).
    - Neutral/clutch pedal position switch and related wiring harness (MTX)
      (See CLUTCH PEDAL POSITION (CPP) SWITCH INSPECTION ).
    - TR switch and related wiring harness (ATX)
      (See TRANSAXLE RANGE (TR) SWITCH INSPECTION ).