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Home >> Toyota >> 1998 >> Tercel Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests - 4-CYL >> Fuel System >> Fuel Control >> Fuel Cut System
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Fuel Cut System

  1. Connect scan tool to DLC-3. See Figure-Figure or Figure-Figure . Scan tool is used to read engine RPM. Start engine and warm engine to normal operating temperature.
  2. Ensure A/C and all accessories are off. Gradually increase engine speed to specified RPM. See FUEL CUT SYSTEM TESTING SPEED  table.
    FUEL CUT SYSTEM TESTING SPEED

    Application Engine RPM
    Camry & Celica 2500
    Corolla 3500
    RAV4 2500
    Tacoma 3500
    Tercel 2500
    T100 3000
    4Runner 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 SYSTEM  table. Shut engine off. Remove test equipment.
FUEL CUT SPECIFICATIONS (1)

Application Fuel Return RPM
Camry & Celica 1500
Corolla 1400
RAV4 1500
Tacoma, T100 & 4Runner
A/T 1500
M/T 1400
Tercel 900
(1) Check with engine at normal operating temperature and A/C off.
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