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Guest Message by DevFuse
 

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EJ harness interchangeability?


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6 replies to this topic

#1 Carl B.

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Posted 08 January 2014 - 08:42 PM

Just curious about the interchangeability of the EJ harness from different years.  Im thinking of getting a fresh harness to make my ej swap look a little more professional.  



#2 Gloyale

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Posted 08 January 2014 - 09:58 PM

What do you have currently?

 

There is some interchange, but not a whole lot.



#3 Carl B.

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Posted 08 January 2014 - 10:12 PM

I have EJ251 engine with all wiring and ecu from a wrecked '01 RS.  The salvage yards around here have a few Outback Sports with EJ25 but not so many RS.



#4 Carl B.

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Posted 08 January 2014 - 10:12 PM

I assume something from another MAP car would be best.  



#5 Carl B.

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Posted 09 January 2014 - 05:01 PM

Okay, the way I understand it is, as long as I match the harness and ecu I should be okay. Also would have to match cam and crank sensors with the ecu. Can anyone verify if Im on the right trackm I might be better off pulling the current harness out and cleaning it up.

#6 Scooner

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Posted 09 January 2014 - 11:54 PM

Hey Carl B, on both of my EJ swaps I've completed I basically kept the plug ends that plug into the engine main plugs and cut a foot or two off of the main plugs that come off of the ECU. The rest of the wires I made from new wire, the cam sensors, crank sensors etc that use shielded wire I just installed new. You can find an electrical wire distributor near you that sells it by try he foot. For the throttle sensor I used a shielded cable with 4 wires in it and it all works great. The shielding protects the wires from electrical noise. For the standard wires like for the fuel injectors, power wires etc I'd just use regular 18g wire. I've even thought of going to the pull and save here and taking an ECU, and all of the plugs and making a harness/ECU setup to sell.

#7 Carl B.

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Posted 10 January 2014 - 12:04 AM

Scooner,  I think I may do that.  






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