![]() |
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
![]() |
malaga_red75 |
![]()
Post
#1
|
'74 2.5L N/A Subie ![]() ![]() Group: Members Posts: 454 Joined: 5-March 06 From: Menlo Park, CA Member No.: 5,674 Region Association: None ![]() |
So I am using aftermarket relays for the fuel pump and the cooling fans on my subaru conversion, using the stock ECU. I have attached a picture of the relay diagram.
![]() So, there are two circuits, an 'inner' circuit and an 'outer' circuit. The outer circuit is only completed when the inner circuit's electromagnet is active. It is currently wired like this: The 'inner circuit' receives a signal from the fuel pump pin on the ECU which goes into terminal 86 on the relay. (and here is where i think it has been wired wrong), coming out of terminal 85 the wire goes into the ECU into a 12 volt power connection. This is for the 'inner' circuit which should ignite the electromagnet. --- I THINK THIS IS WRONG. ---Shouldn't the wire coming out of terminal 85 go to a ground? thus completing the inner circuit and cause the magnet to attract the arm to complete the 'outer' circuit. I hope that wasn't too confusing, let me know. Thanks a bunch! -Peter |
![]() ![]() |
busmech |
![]()
Post
#2
|
Member ![]() ![]() Group: Members Posts: 68 Joined: 12-April 09 From: Daly City Ca Member No.: 10,258 Region Association: Northern California ![]() |
The only time that you need to have a certain polarity is when you use a supression diode, which the questioned relay does not have.
|
![]() ![]() |
![]() |
Lo-Fi Version | Time is now: 16th June 2024 - 03:31 PM |
All rights reserved 914World.com © since 2002 |
914World.com is the fastest growing online 914 community! We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ... |