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Ford
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1990
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Bronco II RWD, Standard, M5OD-R1
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Repair and Diagnosis
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Engine Performance
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System
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Engine Controls - Tests W/Codes
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Test H - Fuel Control
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Test H: Step 29
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Unmetered Air/Vacuum Leaks
Unmetered Air/Vacuum Leaks
Canister Purge (CANP) system
PCV system
Engine sealing
Crimped fuel lines
Plugged fuel filter
Fouled injectors
Air leaks between MAF and air outlet tube