I am looking for some ideas on moving around and simplifying the wire harness. I am wanting to make the engine easier to work on and be less cluttered under the hood.
Lets see some pics!
Lets see some pics!
LB7: Wiring Harness Mods
- Thread starter bullfrogjohnson
- Start date
I did this on my truck. It was completely worth the time it took considering I've had to pull my injectors like four times afterwards. I really should post this on here so I don't have to link from the DP.
http://www.dieselplace.com/forum/showthread.php?t=381652&highlight=
http://www.dieselplace.com/forum/showthread.php?t=381652&highlight=
I wish I could post a pic from my phone... I've got such a sexy pic of a dmax saved on my phone. Zero wires showing except to each injector. The injector harnesses routed to the back of the engine in a single loom on each side. Looked amazing.
Who's truck? I have a similar setup on my puller. Everything is inside the cab up under the dash. Only wires over the engine are to run the injectors. And to go to the necessary sensors.
The ATS Hazmax has what Dustin did, no wires showing except for each injector, all the loom was on each side of the engine, looked very cool.
There is no wiring harness on that engine. Look at the fuel rail pressure sensor.a classic cadillac IIRC.
I'm on my computer now so here it is...
that isn't a single black line running from injector to injector?
Regardless, it looks good sitting there like that then. :cool2:
Regardless, it looks good sitting there like that then. :cool2:
Where exactly did you mount everything at? Do you have more detailed pics of how everything is ran?
These first two pics are of the main injector wiring harness I made. Ran them up the front of both cylinder heads over the valve covers. I checked and the heat coming off the exhaust manifolds wasn't enough for concern. I figured this was probably going to be the easiest. I thought about running them somehow down the back but with all the hot exhaust back there I decided to go this route.
This is how I split up the wiring harness. On the left is all the FICM/injector wiring, the middle is all the wiring for the sensors, and the right is the glow plug wiring.
I made a bracket down on the frame that holds the FICM and the glow plug relay. The big wiring loom going up each side is the injector wiring. All of the sensor wiring I ran down into the engine valley underneath the intake crossover. And then found a tight little passageway that runs behind the driver's side power steering/air conditioning bracket and then comes out just under the power steering pump. I even kept the two main electrical bail connectors that usually sit on the driver's valve cover. Those are now between the ECM and the driver's inner wheel liner. So I just have one little loom coming out of the fuse block that goes straight down.
I also tapped into the fuel return line back by the oil filter and ran those up so the FICM was still cooled. I know that fuel is a lot hotter but so far so good. And the plastic skid plate blocks most road debris. I cut out little rubber flaps to fill in the side to try to keep road splash from hitting it as well.
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I'm sure I will. I also have the harness for the alternator and a/c compressor that I didn't relocate as well. They were both in the plans but I was getting a little excited to get the truck back together. Plus I figured those were on top of the motor and easy to relocate at a later time.
One other note, POWDERCOAT is the way to go, not paint. I had blown most of my money on the go fast parts and I wasn't sure how the colors would turn out anyhow. I figure an engine build is in my near future so I'll get everything powdercoated then.
Have about 25,000 miles since I did this and only had one issue. I ran the wiring for the MAP sensor and the Fuel Rail Pressure sensor down the back side of the intake crossover. Well the heat from the turbo pedestal melted those down pretty quick. So just installed a little shield made from the factory turbo heat shield and so far so good!