 Fuel Injector question. |
|
|
|
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. |
|
|
| Black914_4 |
 Apr 1 2012, 02:09 PM
Post
#1
|
|
Member  Group: Members Posts: 272 Joined: 11-January 12 From: AR Member No.: 13,994 Region Association: South East States  |
Stock '74 2.0
How much pressure does the injector need to work properly? I know the fuel reg is set about 29 psi. |
   |
 
|
  |
Replies
| Black914_4 |
Apr 1 2012, 03:56 PM
Post
#2
|
|
Member Group: Members Posts: 272 Joined: 11-January 12 From: AR Member No.: 13,994 Region Association: South East States |
QUOTE(vsg914 @ Apr 1 2012, 06:30 PM)  What Jim said. The pump runs for a half second when the key is turned on. Once the engine runs the ecu triggers constant power to the pump. Pressure has nothing to do with it. "The pump has power whenever the key is on." Not correct. Thats what I needed to know. My factory wire doesn't have power anymore. I ran a new wire from the fuse panel that is hot when the key is on. Being as the pump turns on, then off when you first turn the key on I thought the computer was controlling the pump and turning it on and off "as needed". If it is suppose to run all the time I'll just leave it as it is. I guess I was more worried about wearing the pump out early and the constant fuel flowing all the time but if it's normally that way anyways.... Thanks for the help |
|
|
|
Posts in this topic
2xs performance Fuel Injector question. Apr 1 2012, 02:09 PM
vsg914 Hmmm, not sure, but since the specified pressure i... Apr 1 2012, 02:23 PM 2xs performance The regulator lets fuel by and keeps system at lea... Apr 1 2012, 02:35 PM
orange914
But to keep the pump from running full time and c... Apr 1 2012, 08:50 PM type47 I'm not sure about the idea that the "pum... Apr 1 2012, 03:25 PM vsg914 What Jim said. The pump runs for a half second whe... Apr 1 2012, 03:30 PM Dave_Darling That's correct, the pump just runs continuousl... Apr 1 2012, 03:31 PM brant Thats why the factory has a return line...
make su... Apr 1 2012, 04:33 PM Tom The fuel pump shood turn off if the engine dies. T... Apr 1 2012, 06:42 PM 2xs performance return line works fine.
The factory wires are st... Apr 1 2012, 06:47 PM |
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 20th March 2026 - 05:04 AM |
Invision Power Board
v9.1.4 © 2026 IPS, Inc.