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BPA Valve
- Remove BPA valve hose from throttle body. Blow air through port "A". See Fig 1
. Ensure air flows when valve is cold. If air does not flow, replace ISC/BPA valve.
- Measure resistance of Idle Speed Control (ISC) Valve at 2 wire connector of BPA valve. Resistance should be between 5-20 ohms, at normal operating temperature. If not, replace BPA valve.
Courtesy of FORD MOTOR CO.