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Home >> Mazda >> 2000 >> Protege DX, Standard >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Controls - Self-Diagnostics - 1.6L >> Diagnostic Trouble Code Tests >> DTC P1102: MAF Sensor Inconsistent With TP Sensor (Less Than Excepted) >> Diagnosis & Repair Procedure
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Diagnosis & Repair Procedure

  1. Ensure FREEZE FRAME PID data has been recorded. Check service bulletins. Go to next step.
  2. Start engine. Using scan tool, access PID/DATA MONITOR. Record PID data for ECT, MAF and TP. Start engine. Ensure ECT PID is 176°F (80°C) or more. Drive vehicle for at least 5 seconds with TP PID at 50 percent or more. If MAF PID is less than .70 lb/min, check TP sensor. replace as necessary. If TP sensor is okay, go to next step. If MAF PID is more than .70 lb/min, problem is not current (intermittent).
  3. Disconnect MAF sensor. Check connector and sensor for damage or corrosion. If no problem is found, go to next step. If any problem is found, repair connector terminals or replace MAF sensor and go to step  5 .
  4. Disconnect PCM. Check connector and PCM for damage or corrosion. If no problem is found, go to next step. If any problem is found, repair as necessary. Go to next step.
  5. Connect all connectors. Turn ignition on. Erase DTC. See CLEARING CODES in SELF-DIAGNOSTICS - INTRODUCTION - MIATA, MILLENIA, MPV & PROTEGE article. Start engine. Allow engine to warm to operating temperature. Drive vehicle for at least 5 seconds under the following conditions:
    • MAF PID is more than .63 lb/min.
    • TP PID is 50 percent or more.
    If same DTC is not present, go to next step. If same DTC is present, replace PCM. After repair, go to next step.
  6. Clear DTC from memory. Recheck for DTCs. If any DTC is present, diagnose and repair DTC. If no DTCs are present, test is complete.
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