2ZR Turbo Yaris

[myfirstyota]

Originally Posted by 06YarisRS

Started the trans fan wiring

I only had about a half hour to work on the car tonight, but I got the wiring test routed and measured. I'm going to run two extra wires through the conduit; one for a future trans temp gauge and an oil temp gauge sensors. I've already talked about the trans temp hook up plans, but the oil gauge will be pan via the drain plug. I found a nifty 12M x 1.25 to 1.8" NPT fitting that comes with a copper crush washer. I just remove the oil plug, put the sensor in the fitting and screw it in like a normal drain pan bolt. Although the pan is probably not the best spot to monitor, this is without a doubt the simplest route. The oil from the turbo return line comes out close to where the sensor sits, so the reading may be close to indicative of one of the hottest parts of the lubrication system. I may not do these two gauges right away, but I've got all the fittings for both and will have the necessary wires in position when the time comes.

A little preliminary wiring. I'm using 14 gauge stranded automotive primary wire. It's very heavy, solid wire and my run will only be about 3' long and fan amp draw is around 8 amps, so well within safety margins. I remove the plastic terminal protectors, crimp, solder and heat shrink terminal ends and braid, solder and heat shrink all inline connections. I used good quality heat shrink; the kind that oozes out a nice gooey, glue-like substance that really seals well. All wires will run through loom and be completely taped. No moisture getting in here, lol. The loom will be ziptied to the chassis along the way.

I've made the mistake of trusting the plastic insulators on crimp connectors. Long story short I almost burned my car down. Solder and shrink wrap is the way to go.