 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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| worn |
Jun 3 2013, 08:07 AM
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#2
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Winner of the Utah Twisted Joint Award Group: Members Posts: 3,489 Joined: 3-June 11 From: Madison, WI Member No.: 13,152 Region Association: Upper MidWest 
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Well it looks like the relay board is OK, which is sort of too bad because if that was the problem you could just swap. The owner would have wanted fuel pump when he turned the key and thereafter, and probably didn't want an injector brain. It looks like the biggest changes were to the engine harness. You can trace things though the schematics - not that bad because there are lots of resources or you can find a new harness. Look at Jeff Bowlsby's sites whatever you do.
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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 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 euro911 A jumper to ground on the relay board is typically... Jun 4 2013, 01:44 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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