 1973 Porsche 1.7 D-Jet, No power to two injectors |
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| crodog |
 Apr 30 2017, 08:38 AM
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#1
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Newbie  Group: Members Posts: 4 Joined: 19-March 17 From: Wisconsin Member No.: 20,942 Region Association: None  |
I have power to #3 and #4 injectors but not #1 and #2. The car will run but it is missing on 1 & 2. I have spark but when I pull the wires off the injectors nothing happens. After testing more I found I have no power to both of them. Where does the power come from? Do I need to look at the releasing contacts at the base of the distributor?
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| JeffBowlsby |
May 1 2017, 08:07 AM
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#2
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914 Wiring Harnesses Group: Members Posts: 8,575 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None 
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I could be wrong, its been years since I read these but for the theory and how these things work, see here:
http://bowlsby.net/914/Classic/zTN_Man04.pdf http://bowlsby.net/914/Classic/zTN_Man06.pdf http://bowlsby.net/914/Classic/zTN_Man14.pdf http://bowlsby.net/914/Classic/zTN_Man16.pdf |
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Posts in this topic
crodog 1973 Porsche 1.7 D-Jet Apr 30 2017, 08:38 AM
larss No1 and 2 have a common spade connector fort earth... Apr 30 2017, 10:57 AM crodog Thx for the info. I will hunt down the grounds. Ma... Apr 30 2017, 11:03 AM
larss
Thx for the info. I will hunt down the grounds. M... Apr 30 2017, 11:14 AM CatDaddy60 I agree that most likely it is a ground issue as t... Apr 30 2017, 12:11 PM Dave_Darling Power to the injectors comes from the ECU. The tr... Apr 30 2017, 12:44 PM crodog
Power to the injectors comes from the ECU. The t... Apr 30 2017, 01:55 PM bdstone914
Power to the injectors comes from the ECU. The ... Apr 30 2017, 02:00 PM larss
Power to the injectors comes from the ECU. The t... Apr 30 2017, 10:56 PM Jeff Bowlsby Actually the injector groups as the ECU see them a... Apr 30 2017, 11:07 PM larss
Actually the injector groups as the ECU see them ... May 1 2017, 12:41 AM larss Below from the Robert Bosch 914 D-jet manual.
The ... May 1 2017, 08:21 AM Dave_Darling Yes, the injectors are opened in two batches. I h... May 1 2017, 09:06 AM larss Agree Dave, I just used a cheap test lamp with LED... May 1 2017, 09:53 AM |
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