erik.wahlstrom
Active member
I believe the positive just goes to the driver seat F150 distribution block. From there it goes all over.
Installing an Espar D2L with an AUX battery under the passenger seat
- Thread starter erik.wahlstrom
- Start date
Yes, I removed the large power wire connected to it at the source underneath the driver's seat. No acc were connected
Last edited:
That's your diagnostics port. I wouldn't cut it off.
erik.wahlstrom
Active member
Managed to get the controller installed. Actually super easy. Worth noting that the default cable length is perfect to run up the B pillar back to just behind the slider. I’ll be able to reach the controller from the bed.
VanGoSki
Active member
That's the CAN bus terminator. That's actually a resistor under that heat shrink, 120 ohms I believe. If you short it then no worky.
VanGoSki
Active member
That makes sense. I know that plug on the end is a terminator, but I was wondering what the actual purpose of the port was.
VanGoSki
Active member
Question for you on that branch of the harness that goes up to the controller. There are also about seven other wires in the same loom without a connector on the end. Did you use any of those for anything?
erik.wahlstrom
Active member
No. Those are for various things including the high altitude sensor. The easy start pro has that built into it. Others, I think are for the “easy start web” which allow you to hook up GSM based device used to control the unit via an app.
erik.wahlstrom
Active member
Well, crap. Everything is hooked up and . . . . . Nothing. It seems I have a bad wire or something in my AW kit. I have power to my fuse block, but nothing on the wire run to the seat base. . . So. Now what? I can either:
- Tear into the wiring chase to try to squeeze the power wire through to the drivers base. Some thing I promised I'd never do again
- Get a post mounted fuse block and run the espar right off the battery?
erik.wahlstrom
Active member
Yeah I did, there is power across the fuse and I tried another fuse and another slot. Oh well. I must have done something to the wire. I've got a second small fuse box in the passenger seat mounted and wired. I think I'll use the accessory post on the the Aux battery positive and the preinstalled ground in the passenger box and just run a wire to my fuse box. I have all the parts and I can avoid pulling up the channel cover. Plus all the fuses and wiring will be in the passenger base which means I can avoid pulling the driver seat for heater troubleshooting.
erik.wahlstrom
Active member
Finally got it done. I ended up building a bracket to relocate the stock battery.
worked like a charm. It’s reinforced on the bottom by aluminum flat bar.
The battery is rock solid with plenty of air flow.
The wiring of the easy start pro is trivial. Just plug in the 4 wire connector. I located the unit just behind the slide for easy access.
Heating vent came out pretty easy too.
I’m a little surprised by how loud it is outside. Not bad inside.
I did smell some melting plastic. I’m not sure if It’s just a new heater breaking in? Or maybe some wire too close to the exhaust. I’ll wrap the exhaust in ceramic insulation and aluminum tape and all will be good.
worked like a charm. It’s reinforced on the bottom by aluminum flat bar.
The battery is rock solid with plenty of air flow.
The wiring of the easy start pro is trivial. Just plug in the 4 wire connector. I located the unit just behind the slide for easy access.
Heating vent came out pretty easy too.
I’m a little surprised by how loud it is outside. Not bad inside.
I did smell some melting plastic. I’m not sure if It’s just a new heater breaking in? Or maybe some wire too close to the exhaust. I’ll wrap the exhaust in ceramic insulation and aluminum tape and all will be good.
erik.wahlstrom
Active member
I should also say that one product I found worked fantastic. Silicone wrapped fiberglass tube insulation. It will protect the fuel line from heat and road debris too. 
NoGoodAtAll
New member
Where'd you get the tube insulation? I need some for my install but a quick google search didn't turn up anything like what you have in the photo.
erik.wahlstrom
Active member
This is what I bought and was about 2x what I actually needed.
erik.wahlstrom
Active member
I don’t. I just drilled 3 holes by following the included mounting plate, then sealed them with high temp silicone. Was actually really easy. That part is way more forgiving than I expected. There are lots of ways to do it.