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umop apisdn
Join Date: Jun 2014
Location: Brisbane, Australia
Posts: 642
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The Original 928 Porsche relay does not prime the pump, it simply runs when there is a valid ignition pulse from the tachometer feed, there is no air plate switch on the 928 (there was one on the 911)
The BMW relay I have does prime quickly on turning the ignition on - then runs when tach valid
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Steve
1981 928S 4.7 ROW with KE3-Jetronic
"Be the man your dog thinks you are."
www.FrankenCIS.com
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