V8 topic: front mounted electric fuel pump wiring, ...where to tap 12V? |
|
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. |
|
V8 topic: front mounted electric fuel pump wiring, ...where to tap 12V? |
neo914-6 |
Jul 20 2006, 02:06 AM
Post
#1
|
neo life Group: Members Posts: 5,086 Joined: 16-January 03 From: Willow Glen (San Jose) Member No.: 159 |
What's a good circuit to tap into near the front?
I tried to activate the stock relay and am stumped. I get 12V at #14 in the 14 pin plug on the relay board but no where else. Where can I find the plug in a '70 chassis, the one pictured near the hell hole did not ohm. It may be cut or maybe another plug. (IMG:style_emoticons/default/confused24.gif) Are Holley Blue's supposed to be high pitched? Attached image(s) |
McMark |
Jul 20 2006, 02:46 AM
Post
#2
|
914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
Do you still have the relay board?
The FI plug, terminal #3 must be grounded in order for the fuel pump relay to trip. The FI terminal is the four terminal connector near the rear of the relay board. Run a wire from the #3 spade terminal to the relay board ground point and the relay will trip and you will get 12v at the plug. (IMG:style_emoticons/default/wink.gif) Attached image(s) |
neo914-6 |
Jul 20 2006, 09:52 AM
Post
#3
|
neo life Group: Members Posts: 5,086 Joined: 16-January 03 From: Willow Glen (San Jose) Member No.: 159 |
Do you still have the relay board? The FI plug, terminal #3 must be grounded in order for the fuel pump relay to trip. The FI terminal is the four terminal connector near the rear of the relay board. Run a wire from the #3 spade terminal to the relay board ground point and the relay will trip and you will get 12v at the plug. (IMG:style_emoticons/default/wink.gif) Thanks Mark, I'll try that. I thought I solved it as it seem all the relays are in series and I only installed one for the pump. When I read the ECU controls it I gave up. |
Lo-Fi Version | Time is now: 14th June 2024 - 07:09 AM |
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 ... |