Tests 4 & 4A: System Operational Check

These tests check engine start-up circuit, fuel injector, closed loop air/fuel mixture function, coolant temperature sensor function, MAT sensor function, detonation sensor closed loop ignition retard/advance function, EGR valve and canister purge solenoid function, idle speed control and A/C control functions.

Fig 1: Test 4, System Operational Check (1 Of 2)

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Fig 2: Test 4, System Operational Check (2 Of 2)

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Fig 3: Test 4A, System Operational Check (1 Of 9)

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Fig 4: Test 4A, System Operational Check (2 Of 9)

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Fig 5: Test 4A, System Operational Check (3 Of 9)

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Fig 6: Test 4A, System Operational Check (4 Of 9)

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Fig 7: Test 4A, System Operational Check (5 Of 9)

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Fig 8: Test 4A, System Operational Check (6 Of 9)

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Fig 9: Test 4A, System Operational Check (7 Of 9)

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Fig 10: Test 4A, System Operational Check (8 Of 9)

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Fig 11: Test 4A, System Operational Check (9 Of 9)

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