rxrotary2_7

i have everything almost done. there are a few things i have questions about though. again this is in an FD.

i am not using any of the stock harness. i have conected everything but the following, and some of the questions i have, i could not figure out from the factory wiring diagram. (i am not to great with reading those diagrams)
1. road speed- i am guessing i should cut the conector off the stock trans harness. but also in those same 4 conections are the 'back-up' lights and 'neutrual switch'
where should these get re-conected to? i see the signal for them at connection [X-14] (pass kick pannel) but can not determine what conector, or color. it looks (reverse switch) like yellow/red wire. also looks like it is part of the emission harness and the dash harness, but the colors change from harness to harness.

2. i see the PWM outputs are grounds. i want to run one for rad. fans, and the other for BAC. in my process of trying to figure out the fan, i noticed something weird. i turned the ignition on and the fans (both) went on high and stayed there when i switched the ign off. when i went to turn the ign on again, the fans turn off. so...my question is this. did you pick up the wire for the fans in the engine bay at the relays, or somwhere in the dash harness? and what wire did you use for violet/white (or whatever PWM you used) and what about the power wire for the PWM's?

3. i have not even looked at the BAC hook up yet, does anyone have any info on how to do that?

4. for cas and ignightor, the wires left unused, can i just cut them off close to the e6k connection?

5. the green 'switched' power. where is the best place to get that signal? i do not want to use a switched that is going to turn off as i crank the motor.

6. the fuel pump wires. it says in the haltech manual to not use another inline relay, but to run it directly to the pump. is there such wires already in the car, or should i run (extend haltech wires) directly to the pump?


sorry if they are realy dumb questions, but i just want to mae sure i do it right. i also want to save some time by asking rather than "figuring" it out.

Marcel Burkett

1 . If you are going to use the road speed you should just splice into the stock harness and not cut it completely because that is where your speedo gets its signal , I did not hook it up but that how I would have done it .
2. The same happened to me when I was doing the fans and I could not get it to turn on again , so remember that the stock ECU works the same way bu grounding the relays so you need to just find the GROUNDING wires at the relays , cut and connect the PWM output wite , This is best as the circuit is altengy complete with fuse , relay etc. I also did mine to start both fans with one output using two relays.
3.The BAC valve is very simple you just need an appropriate SWITCHED power supply I got mine off the piece of sub harness which is going to the tranny (it was closest) , and connect the E6K to the other connector.
4.for the CAS and ignitor you can cut out the wires but why ? , they don't bother me any and who knows I might want to sell (for the E11) and the buyer might need those wires!.
5.The Green wire is the AUX. input , the switched wire is the GREY , there are two stock connectors close to the battery (on the cars left front corner ) just get in and find which is switched.
6 . yes the HALTECH already comes with a pair of relays one of which is for the pump , it would be much simpler to just use these wires , you would have to use a PWM output to switch the stock relay , the ECU would not have total control of the pump (start prime , shutdown etc) , there is also the pump resistor to deal with.I used the HALTECH relay and am keeping the relay for any future additions , aux pump , H2O injection pump , fans ETC.

rxrotary2_7

thanks so much for the reply. i have already figured all this out. but i REALLY appriciate the tiem you took to try to help me.
(i know the green is AUX...i typed that wrong on accident, )
thanks again.

Marcel Burkett

Sure no problem.