 My first garage thread / fuel pump, Relay board modification. |
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| 914boy |
 Jun 3 2013, 07:32 AM
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#1
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Newbie  Group: Members Posts: 11 Joined: 2-June 13 From: NYC Member No.: 15,956 Region Association: North East States  |
The car was carbs and the fuel pump was on constant when the key is on.
I am trying to put it back to factory settings. As far as I understand in djets, when the key is turned on, there is a pulse to turn the pump on for a quick second then once the car starts the ecu keeps the power on to keep the fuel pump running. I am not getting that pulse. The relay clicks and I even switched the relay. I noticed that the PO modified the connectors on the relay board for the carbs. (See pics) please help me she's some lights The car is a 1.7 djet year 1970 Thanks Attached thumbnail(s) 
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| euro911 |
Jun 4 2013, 01:44 AM
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Retired & living the dream. God help me if I wake up! Group: Members Posts: 8,911 Joined: 2-December 06 From: So.Cal. & No.AZ (USA) Member No.: 7,300 Region Association: Southern California 
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A jumper to ground on the relay board is typically needed to keep the pump running when installing carbs.
Post a pic of your whole relay board. We're looking for a jumper to ground from one of the terminals (marked I, II, III and IV on the image Tim posted, and marked 1, 2, 3 and 4 on the image Dave posted) located on the rear driver side of the board. Don't quote me, but a jumper from terminal III (3) to ground appears to complete the circuit for the coil in the relay (75) (which would close the contacts and keep the pump running when the ignition key is on). Again, post a pic so we can see what's going on there (IMG:style_emoticons/default/popcorn[1].gif) |
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Posts in this topic
914boy My first garage thread / fuel pump Jun 3 2013, 07:32 AM
914boy More Jun 3 2013, 07:33 AM worn Well it looks like the relay board is OK, which is... Jun 3 2013, 08:07 AM 914boy He had the gree/yellow wire shown on the second pi... Jun 3 2013, 01:36 PM timothy_nd28 RE: My first garage thread / fuel pump Jun 3 2013, 01:50 PM timothy_nd28 Looks like the green/yellow wire is part of the op... Jun 3 2013, 02:04 PM Dave_Darling Remember that the wiring can differ slightly from ... Jun 3 2013, 04:32 PM
914itis
Remember that the wiring can differ slightly from... Jun 3 2013, 08:55 PM Dave_Darling All D-jet cars should prime the pump for about 1.5... Jun 3 2013, 11:39 PM timothy_nd28 Interesting, pin 11 (brown white wire) from the 14... Jun 4 2013, 12:52 AM 914itis Yes the III was grounded, in addition pin # 10 on ... Jun 4 2013, 06:07 AM 914itis Update:
we put the fuel injection system together,... Jun 8 2013, 10:02 AM 914boy We solved the issue with the fuel pump. The pump p... Jun 9 2013, 07:14 PM |
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