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-   -   '74 914 2.0 AAR question (http://forums.pelicanparts.com/porsche-914-914-6-technical-forum/1149094-74-914-2-0-aar-question.html)

JMTaxter 11-10-2023 05:36 AM
'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.

dr914 11-10-2023 01:02 PM
12 volt but will also close if the valve itself is hot

JMTaxter 11-11-2023 05:19 AM
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?

Dave at Pelican Parts 11-12-2023 11:21 AM
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


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