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Old 10-18-2017, 10:22 PM   #141
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Join Date: May 2007
Location: Beaverton, OR
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Ok, been a while, I have moved on from that but here is how it worked. The fuse on the ground side of trombetta would be a 10 amp fuse. For a new install this is not needed as long as the positive wires have a fuse. This fuse was a left over of what was part of the Surepower Setup.. So the additional relay is to enable you to enable the trombetta manually. 87a is the normally connected pin of the relay, it is connected to the run circuit on the van (key is in run) This line should have a 10 amp fuse. 85 & 87 are tied to a 12 volt source again with a 10 amp fuse. When parked if you wanted enable the trombetta , you switch the ground side of the relay coil closing which makes 87 become the input to the trombetta relay. So yes 85 & 87 have to be tied together. If you don't want the manual connect, just wire the run circuit to the trombetta.

I hope that make a little more sense, if not feel free to pm.

I ran this for a couple of years on my V-10, I would not recommend this for a 6.0 diesel or if you plan on running heavy loads on House side while driving.


2004 E350 EB V10 E/PH 2WD
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Old 10-19-2017, 03:38 PM   #142
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Thanks, Greg, I appreciate your help!

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