 Pulling fuel injector leads..., Should the engine stumble? |
|
|
|
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. |
|
|
| BMartin914 |
  Sep 29 2005, 02:56 PM
Post
#1
|
|
|||  Group: Members Posts: 1,408 Joined: 30-May 04 From: Oregon Member No.: 2,128 Region Association: Pacific Northwest  |
Testing the functionality of my FI last night I decided to pull the injector leads one at a time to see if it made any dirfference in the running condition.
Pulled #1 and it kept running like nothing had happened. Pulled #4 and it died. Restarted it and pulled #2 and it kept running like it had been, pulled #3 and it died. Is this indicitive of something? I expected maybe a stumble, but not for it to die. |
   |
 
|
  |
Replies
| phantom914 |
Sep 29 2005, 03:15 PM
Post
#2
|
|
non-914-owner non-club member Group: Benefactors Posts: 1,013 Joined: 24-February 04 From: Covina,CA(North ofWest Covina) Member No.: 1,708  |
Definitely something wrong. The #1 and #2 injectors are not working or actually more likely, they are not being triggered. Are you counting the cylinders correctly? I thought that #1/#3 were paired and #2/#4 were paired.
Since a pair is bad, I suspect the trigger points or a wire harness problem. A bad ECU could cause it, but that is the least likely cause. To verify that it is not the injectors, swap the connections. Swap #1 and #2 and swap #3 with #4. Do your test again. If #1 and #2 now cause the engine to die and disconnecting #3 and #4 don't make a difference, then it is not the injectors. Andrew |
|
|
|
Posts in this topic
BMartin914 Pulling fuel injector leads... Sep 29 2005, 02:56 PM
goose2 The injectors are diagonally paired on the trigger... Sep 29 2005, 03:26 PM kwales Make sure the injectors are plugged in correctly.
... Sep 29 2005, 03:47 PM Dave_Darling Check the injector grounds at the rear crank case ... Sep 29 2005, 05:19 PM
BMartin914 All of my grounds have been tied into ONE by the P... Sep 30 2005, 09:23 AM |
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 10th June 2024 - 12:14 AM |
Invision Power Board
v9.1.4 © 2024 IPS, Inc.