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Check Sensors Related To Fuel Trim

  1. Check the Input Voltage of Sensors related to Fuel Trim (MAPS, TPS, ECTS, PCSV, Injector, and etc) - Refer to TROUBLESHOOTING
  2. Are the sensors related to Fuel Trim O.K?

    YES 

    • Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.

    NO 

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