Mike's Workshop Manuals
: Service manuals for every vehicle
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Ford
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1991
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Probe GL, Standard
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Repair and Diagnosis (Single Page)
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Engine Controls - Theory & Operation - EEC-IV
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Computerized Engine Controls
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Input Devices
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Brake On-Off (BOO) Switch
Brake On-Off (BOO) Switch
The BOO switch is mounted on the brake pedal. It signals deceleration for air/fuel ratio adjustment.