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Home >> Toyota >> 1996 >> Corolla Base, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Fuel System >> Fuel Control >> Fuel Cut System
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Fuel Cut System

  1. When testing fuel cut system, engine RPM must be monitored using scan tester. Connect scan tester to data link connector No. 3 for monitoring engine RPM. For connecting of scan tester, see appropriate application under IDLE SPEED & MIXTURE in ADJUSTMENTS article.
  2. Start and warm engine to normal operating temperature. Ensure the A/C and all accessories are off. Gradually increase engine RPM to maintain at least specified engine speed. See FUEL CUT SYSTEM TESTING SPECIFICATIONS  table.
    FUEL CUT SYSTEM TESTING SPECIFICATIONS

    Application Engine RPM
    Corolla 3500
  3. Using stethoscope, check for fuel injector operating sound. Ensure when throttle lever is released, fuel injector stops operating momentarily and then resumes operating (fuel return RPM).
  4. Ensure fuel return RPM is within specification. See FUEL CUT SPECIFICATIONS  table. Shut engine off. Remove test equipment.
FUEL CUT SPECIFICATIONS (1)

Application Fuel Return RPM
Corolla 1400
(1) Check with engine at normal operating temperature and with the A/C off.
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