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Registered
Join Date: Aug 2023
Posts: 6
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'74 914 2.0 AAR question
Suspect AAR valve no good, so I have a question: Is the power source that heats the air on start up to activate the valve 6 volt or 12 volt or something else so I can test the valve on the bench? Thanks for your help.
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11-10-2023, 05:36 AM
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dr914 ***********
Join Date: Mar 2018
Location: marietta ga
Posts: 187
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12 volt but will also close if the valve itself is hot
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11-10-2023, 01:02 PM
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Registered
Join Date: Aug 2023
Posts: 6
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Where does the AAR lead typically connect? Is there any reason I can't get the 12V from the No. 15 side of the ignition coil?
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11-11-2023, 05:19 AM
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Administrator
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The AAR coil connects to a wire in the ignition harness that goes back to the relay board and connects to the fuel pump power circuit. The wire gets +12V any time the fuel pump is running.
--DD
__________________
Pelican Parts 914 Tech Support A few pics of my car: http://www.pelicanparts.com/gallery/Dave_Darling |
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11-12-2023, 11:21 AM
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74 Porsche 914 2.0 
