 L-Jetronic Dual Relay on 1.8, Followed the old thread but pumps now runs without key in ignition |
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| motorvated |
 Mar 15 2013, 10:26 PM
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Member  Group: Members Posts: 282 Joined: 13-February 13 From: Colorado Member No.: 15,519 Region Association: Rocky Mountains  |
My fuel pump was running continuously with the key in the "on" position, so I found the old thread dealing with wiring the dual relay properly and testing the Air Flow Sensor and followed the diagnostics and testing stated in there. Air Flow Sensor tested fine, wiring as specified, and now the pump runs with no key in the ignition. I think the pump was re-wired to run through the ignition switch, which I know was wrong. Now I think I may have a bad ignition side on the dual relay. The relay has two numbers on it. Ignition side says 071 906 059. The FI side says 0332 514 129. All connectors are designated on the relay with the same numbers in the same positions as the 120 that the old thread used. The old thread was great to follow as long as things went as planned. In this case, the result was a failure to operate correctly once all the wiring was reconfigured. Any help out there?
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| timothy_nd28 |
Mar 17 2013, 12:19 PM
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Advanced Member Group: Members Posts: 2,299 Joined: 25-September 07 From: IN Member No.: 8,154 Region Association: Upper MidWest 
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Good to hear 0 voltage on 86a, it means that your car wiring isn't screwed up. Bad news having 0 ohms across pin 88y and 88d. The internal contacts within the dual relay should be open and have infinite resistance. This explains why the fuel pump runs with the key in or out of the ignition switch. You may be able to open up the dual relay, and see why the contact is stuck shut, or buy a new dual relay.
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Posts in this topic
motorvated L-Jetronic Dual Relay on 1.8 Mar 15 2013, 10:26 PM
timothy_nd28 Sorry, I'm too lazy to re-read that old thread... Mar 15 2013, 11:01 PM
motorvated
Sorry, I'm too lazy to re-read that old threa... Mar 16 2013, 07:47 AM timothy_nd28 Interesting, but it's fine, connector no conne... Mar 16 2013, 10:17 AM motorvated
Interesting, but it's fine, connector no conn... Mar 16 2013, 02:29 PM motorvated
Interesting, but it's fine, connector no con... Mar 16 2013, 02:49 PM timothy_nd28 Pin 86 on the relay works with the thermotime swit... Mar 16 2013, 02:38 PM timothy_nd28 I just read your little side note at the end, you ... Mar 16 2013, 10:26 PM motorvated
I just read your little side note at the end, you... Mar 16 2013, 11:45 PM motorvated Correction, wire on 86c is coming off of + termina... Mar 16 2013, 11:58 PM timothy_nd28 Much more sense! So the fuel pump has a new w... Mar 17 2013, 12:13 AM motorvated
Much more sense! So the fuel pump has a new ... Mar 17 2013, 07:45 AM motorvated
Much more sense! So the fuel pump has a new... Mar 17 2013, 12:06 PM motorvated
Good to hear 0 voltage on 86a, it means that your... Mar 17 2013, 12:38 PM motorvated
Good to hear 0 voltage on 86a, it means that you... Mar 17 2013, 01:03 PM timothy_nd28 Yah, you're correct with the spring operation.... Mar 17 2013, 01:08 PM motorvated
Yah, you're correct with the spring operation... Mar 17 2013, 01:22 PM timothy_nd28 It was my pleasure. I would give you my spare, bu... Mar 17 2013, 02:15 PM |
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