08-27-2008, 06:33 PM
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#2
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Re: Baro Solenoid Q's
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Human Factory Service Manual
Join Date: Mar 2007
Location: New Jersey
My Ride: 1990 Daytona Shelby
Engine: 2.2 L VNT
1/4: 15.570
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Baro Solenoid is used by the controller to update barometric pressure during driving conditions on turbo vehicles so the fuel control and timing will be correct.
While cruising at steady, no load conditions the controller will block vacuum to the map sensor and bleed any trapped vacuum in the lines. At this point the map will be at rest or key on/ engine off position, the controller will update barometric pressure and then allow vacuum back thru.
The baro solenoid is needed for proper operation on a turbo vehicle.
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