 How much fuel should flow?, Out of fuel pump with EFI |
|
|
|
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. |
|
|
| Rocky |
 Oct 4 2009, 07:27 PM
Post
#1
|
|
From the cockpit  Group: Members Posts: 341 Joined: 24-March 04 From: Gig Harbor,WA Member No.: 1,845  |
My super reliable 75' 1.8 now will not start. It has stock injection. I do have spark! Injectors show no fuel outflow when cranked. I then went to the pump and when cranking over it shows a steady low flow of fuel. Shouldent I see a pretty high rate of pressurized fuel given these are putting out over 20 psi? This is the original fuel pump.
I know I havent posted in a while... Im a looser (IMG:style_emoticons/default/wacko.gif) Rocky |
   |
 
|
  |
Replies
| Cap'n Krusty |
Oct 5 2009, 06:04 PM
Post
#2
|
|
Cap'n Krusty Group: Members Posts: 10,794 Joined: 24-June 04 From: Santa Maria, CA Member No.: 2,246 Region Association: Central California |
I'm gonna try to get the factory troubleshooting guide scanned to a PDF this week, maybe even tonight. Make it easy for you. While you're waiting, check for vacuum leaks, especially the TWO o-rings in the oil filler cap. If they're deformed or missing, they have to be fixed before you move on to other possible problems. The Cap'n
|
|
|
|
Posts in this topic
Rocky How much fuel should flow? Oct 4 2009, 07:27 PM
type47 for a '75, I found in the workshop manual a fi... Oct 4 2009, 08:02 PM 914Sixer Check L-Jet testing info. Fuel pump power does no... Oct 4 2009, 08:23 PM Rocky If I assume fuel flow is adequate out of pump but ... Oct 4 2009, 08:33 PM
type47
If I assume fuel flow is adequate out of pump but... Oct 5 2009, 05:24 AM
Rocky
If I assume fuel flow is adequate out of pump bu... Oct 5 2009, 09:51 AM davesprinkle
If I assume fuel flow is adequate out of pump but... Oct 5 2009, 10:47 AM zonedoubt Check resistor pack, double relay.
Here's a g... Oct 4 2009, 09:49 PM Rocky Yep, its connected.
BTW, nice bike. 400 supers... Oct 5 2009, 11:12 AM davesprinkle Good eye. Yeah, it's a 400 four. My other pr... Oct 5 2009, 03:24 PM r_towle The fuel pump does not come on in Ljet until after... Oct 5 2009, 04:00 PM davesprinkle
The fuel pump does not come on in Ljet until afte... Oct 5 2009, 05:24 PM zonedoubt That's the function of the double relay.
http... Oct 5 2009, 05:33 PM Rocky All great advice! I will give it a once over ... Oct 5 2009, 08:01 PM Rocky Im on the road again!!! :driving:
Du... Oct 10 2009, 12:11 PM zonedoubt Good stuff! :headbanger:
L-jet isn't as... Oct 10 2009, 12:26 PM davesprinkle
Good stuff! :headbanger:
L-jet isn't a... Oct 10 2009, 01:22 PM |
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 10th June 2024 - 07:07 AM |
Invision Power Board
v9.1.4 © 2024 IPS, Inc.