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Home >> Mazda >> 2008 >> 3 Mazdaspeed, 2.3 L >> Repair and Diagnosis >> Engine Performance >> System >> Symptom Troubleshooting [Engine Controls L3 With TC) >> Engine Control System Operation Inspection [L3 With TC] >> Fuel Cut Control System Inspection >> If simulation function of M-MDS is used:

If simulation function of M-MDS is used:

  1. Warm up the engine and idle it.
  2. Connect the M-MDS to the DLC-2.
  3. Select the RPM and the FUELPW1 PIDs.
  4. Monitor both PIDs while performing the following steps.
    1. Depress the accelerator pedal and increase the RPM PID to 4,000 rpm. 
    2. Quickly release the accelerator pedal (brake pedal is not depressed) and verify that the FUELPW1 PID is 0 msec  , and 2-5 msec  , when the RPM PID drops below 1,200 rpm  .