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Yes, speed (RPM) dependant, but if there is no load, there is no vacuum. interesting thought, if you are on a high RPM decel, will the flap open on the way down????
Must have a throttle position sensor input too. when the throttle is more than 75% or something may be that is part of the solonoid signal.
Mk
QUOTE]Originally posted by tholyoak
The flap is indirectly controlled by a solenoid which is controlled by the DME, the solenoid allows the vacuum can on the flapper to see vacuum when it is engergized by the DME. I assume the solenoid is triggered by the DME based upon throttle position (ie full throttle) and engine speed based upon the predetermined maps in the DME.
Controll of the flap is not done by any sort of load measured directly from intake vacuum since there is no map sensor as already mentioned so the DME has know idea of load based upon vacuum.
Todd [/QUOTE]
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Mark Kibort
speedGT #19
Porsche 928
eRACING Motorsports
www.electricsupercharger.com
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