2000 Mazda MPV DXFACTORY OEM SERVICE PROCEDURE

Fuel Cut Control System (Millenia)

  1. To check system operation, connect New Generation Star (49 T088 0A0) scan tool to Data Link Connector (DLC) No. 2. DLC 2 is located under left side of instrument panel, right of steering column. Ensure engine is at normal operating temperature. Allow engine to idle. Turn A/C switch off.
  2. Using scan tool, access DIAGNOSTIC DATA LINK menu, and select PCM. Highlight and select PID/DATA MONITOR AND RECORD. Select INJR and INJL. Scan tool will measure and display fuel injector pulse width. Increase engine speed to 4000 RPM, then quickly close throttle valve.
  3. Fuel injection pulse width should be zero milliseconds until engine speeds drops to about 1200 RPM, then pulse width should return to specification noted prior to increasing engine speed. If pulse width is as specified, A/C cutoff system is functioning properly.
  4. If pulse width is not as specified, measure voltage at PCM terminals 3Q (ECT sensor circuit), 3X (closed throttle position switch circuit), 4AH and 4AL (crankshaft position sensor circuit). See PIN VOLTAGE/PID VALUE CHARTS article. Repair as necessary.
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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