yamahabikes

I just finshed a 5.0 mustang swap. Have two wires I was wondering about. Wondering if anyone on here knows where they are located, wear marks indicate that they have been used. Also questioning about if its in the dash or engine bay



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droptop302

That's for the ecm/its for when you want to pull codes/goes in the engine bay driver side near brake booster

yamahabikes

I dont know though because its located inside of the engine bay on the passenger side and there is no way the wire to go to the drivers side.

The main reason why I am even concerned with it is because I have wired this car and it runs and drives well, all electronics work but my tach doesn't work when I have my V8 cluster in, I put the V6 in and it will work for about 10 seconds after the car starts and it will then no longer work. My blinkers and dash lights also do not work, and I've checked all the bulbs, ran down the wiring for breaks and it is complete. I also amwondering if it may be located near where my power seats are located because my power seats worked with almost all of the harness set up, but after I set up the fuse box harness for the V8 they no longer worked.

Just wondering if the fuse box, or any electrical may be diffrent between the V6 and V8 relating to the fuse box harness.

droptop302

Just wondering if the fuse box, or any electrical may be diffrent between the V6 and V8 relating to the fuse box harness. Could be not shure.But that wire you have a pic of is what i said it is and neave seen it in side the car?

ACE

I agree with him and Honestly they dont have a thing to do with the tach. it is weird that it does not work but your tach runs off your Coil, so for the fun of it, make sure your wires are not corroded or whatnot on the coil. On the seat that has me confused, do you have juice to the seats?