 75 2.0 D-Jet wiring harness, Just fried blue/black wire in the harness |
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| dennisphelan |
 Jan 10 2019, 07:08 PM
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Newbie  Group: Members Posts: 15 Joined: 10-December 18 From: Dundee Oregon Member No.: 22,713 Region Association: Pacific Northwest  |
Hooked up the wire harness that runs from the relay board to the to various connections for the D-ironic fuel injection per Jeff Bowlsby wiring diagram, I installed a new Optima battery and turned on the ignition. Smoke started raising out of the engine compartment. shut it down and see that I melted the Black/Purple wire from the negative 1 terminal on the coil all the way up to the connector on the relay board. it appears to have taken several other wires with it. I think that this wiring harness is toast. I have two problems: (1) need to replace or fix the wiring harness and (2) what went wrong? Any ideas or suggestions on what to do next?
Just checked and found I had forgotten to connect the transmission ground strap. Could that have caused this? |
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| JeffBowlsby |
Jan 10 2019, 10:07 PM
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914 Wiring Harnesses Group: Members Posts: 8,470 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None 
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Hi Dennis, no worries, it can all be repaired good as new. The casing needs to be removed/replaced to replace any damaged circuits.
As mentioned, either the 12-pin plug was mis-indexed on the relay board or possibly the two wires to the coil were swapped. A very common issue. |
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| dennisphelan |
Jan 11 2019, 11:47 AM
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Newbie Group: Members Posts: 15 Joined: 10-December 18 From: Dundee Oregon Member No.: 22,713 Region Association: Pacific Northwest |
QUOTE(JeffBowlsby @ Jan 10 2019, 10:07 PM)  Hi Dennis, no worries, it can all be repaired good as new. The casing needs to be removed/replaced to replace any damaged circuits. As mentioned, either the 12-pin plug was mis-indexed on the relay board or possibly the two wires to the coil were swapped. A very common issue. Thanks Jeff. I cut off the casing from the wiring harness last night and the black/purple wire had melted all the way from the board plug to the coil connection. It had heated other wires insulation to the point where the wires were fused. I will be ordering a new one from you today. |
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Posts in this topic
dennisphelan 75 2.0 D-Jet wiring harness Jan 10 2019, 07:08 PM
mgphoto If connected wrong direct connection to ground and... Jan 10 2019, 08:41 PM Olympic 914 You hooked up the 12 pin connector 1 pin off.
BT... Jan 10 2019, 08:43 PM Olympic 914 Also check the green wire going to the dizzy. it m... Jan 10 2019, 08:56 PM
JeffBowlsby
Hi Dennis, no worries, it can all be repaired go... Jan 11 2019, 11:51 AM |
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