Fuel Pump Troubleshooting, How Do I Hot wire the Pump? |
|
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. |
|
Fuel Pump Troubleshooting, How Do I Hot wire the Pump? |
Steve_R |
May 4 2014, 10:38 PM
Post
#1
|
Member Group: Members Posts: 68 Joined: 8-August 12 From: San Diego, CA Member No.: 14,777 Region Association: None |
I'm having some trouble starting my 73 1.7 FI engine after a rebuild.
I suspect it is a fuel delivery problem. When I crank the starter the engine fires up but quits as soon as I return the key to the on (run) position. The pump runs for about 2 seconds when the key is turned on. So, I would like to trouble shoot the fuel pump. I have a pressure gauge and I would like to hot wire the fuel pump so it stays on all of the time. What pins to I jumper on the relay board to make the fuel pump continuously run while I run the engine. I found this fuel pump trouble shooting link. However I can't seem to navigate beyond the first page. http://members.rennlist.com/pbanders/FPChecklist_frame.htm Thanks, |
Thestigz06 |
May 4 2014, 10:48 PM
Post
#2
|
Aspiring Jarhead Group: Members Posts: 238 Joined: 22-February 11 From: Temecula, CA Member No.: 12,749 Region Association: Southern California |
A good temporary fix is to run a wire off a hot post on your coil through the tins. As for the fuel pump cutting out you possibly need to replace the relay for the fuel pump. Hope this helps!
|
bperry |
May 5 2014, 01:06 AM
Post
#3
|
Lurker Group: Members Posts: 477 Joined: 16-February 04 From: Dallas, Tx Member No.: 1,661 |
FuelPump wiring
--- bill |
TheCabinetmaker |
May 5 2014, 04:34 AM
Post
#4
|
I drive my car everyday Group: Members Posts: 8,318 Joined: 8-May 03 From: Tulsa, Ok. Member No.: 666 |
Most common cause of no start after rebuild is getting t the fuel lines crossed in the engine n bay. I've done it myself even when they were marked.
|
914itis |
May 5 2014, 06:50 AM
Post
#5
|
Advanced Member Group: Members Posts: 2,892 Joined: 9-October 10 From: New York City Member No.: 12,256 Region Association: North East States |
I'm having some trouble starting my 73 1.7 FI engine after a rebuild. I suspect it is a fuel delivery problem. When I crank the starter the engine fires up but quits as soon as I return the key to the on (run) position. The pump runs for about 2 seconds when the key is turned on. So, I would like to trouble shoot the fuel pump. I have a pressure gauge and I would like to hot wire the fuel pump so it stays on all of the time. What pins to I jumper on the relay board to make the fuel pump continuously run while I run the engine. I found this fuel pump trouble shooting link. However I can't seem to navigate beyond the first page. http://members.rennlist.com/pbanders/FPChecklist_frame.htm Thanks, It is normal for the pump to prime for two seconds then stops when you turn the key on. |
r_towle |
May 5 2014, 07:12 AM
Post
#6
|
Custom Member Group: Members Posts: 24,638 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States |
Most common cause of no start after rebuild is getting t the fuel lines crossed in the engine n bay. I've done it myself even when they were marked. (IMG:style_emoticons/default/agree.gif) It will do exactly what you stated when you cross the lines. If the pump fires up when you turn the key to start it, the pump wiring is correct and the pump works. |
Lo-Fi Version | Time is now: 31st October 2024 - 05:06 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 ... |