Street Build Dihtung Glava's Eclipse

[rigsan22]

Just had the car (almost) overheat on me for the first time in 2 years; I caught it just in time.

Thanks to this comment, my first suspect was the Mishimoto fans and so I quickly found both the 20 A fuse and 30 A fusible link, for the "AC condenser" and "radiator fan", blown. Since the fans weren't turning on, the car was about to overheat from standing still. Upon further inspection I realised the actual wiring to the fans was wrong. Huge oversight on Mishimoto's part.
View attachment 791186
This is the plug for the radiator fan (passenger side). The wires going into that connector are 90° out from how they should be; where you are seeing a pair of black wires (grounds) in the foreground and a pair of blue wires (power) in the back, should be a pair of blacks on the right side and a pair of blues on the left. Shown in the picture, is a future short circuit. This seems to be the cause behind our cars overheating and melting fans when utilising Mishimoto fan shrouds.

For those interested - this thread has most of the information one needs to fix this, this post especially so. It goes over which wire does what, so you don't even need a wiring diagram. The connectors are some of the easiest to re-pin out there.
View attachment 791191
You just need to pull this orange divider out with a pair of pliers, then use a small flat head screwdrier, or a thick sewing needle to lift the tabs that hold the terminals inside the connector. You pull on them from the back while you do this and they slide right out.

This is what the driver side fan wiring should look like once it's been re-pinned:
View attachment 791189
Notice both white wires on the car's harness (pictured right) going into blue wires on the fan's connector (left). Those are power wires. The blue/green and black (right) are grounds, and they are going into the blacks (left), which are grounds. From what I can tell, it makes no difference which ground and which power wire goes where, since the Mishimoto fans are single-speed, only that they aren't going power-to-ground and vice versa.

Just make sure you don't get them 180° out by accident (both grounds to powers and both powers to grounds) as the fans will spin backwards which is just next to useless for cooling. I have a picture of this from when I got it wrong:
View attachment 791190
Here, I had the whites (power) going into grounds (black) on the fans. DON'T DO THIS. This is 180° out from how it should be.

So yeah, thanks again @GIB for commenting when you did, saved me a weekend of troubleshooting and replaced it with 45 minutes instead. I wrote an email to Mishimoto as well, hopefully they start checking the wiring on their kits more thoroughly, so that we don't have any more fans melt. Go get your refund btw.

Dude this literally has had me stuck for over a week, ive been losing my mind thinking I had plugged the fans up incorrectly to the vehicle harness. I had also tested my fans with a power probe and, since misbimoto doesn't have any sort of wiring diagram/explanation for which wire does what, and I see exactly what you're saying about the purpose of each wire on the fans. Thank you so much for this detailed breakdown brother, I really thought I'd have to spend more money to go back to OEM fans.

 

[Dihtung Glava]

Dude this literally has had me stuck for over a week, ive been losing my mind thinking I had plugged the fans up incorrectly to the...

I'm glad I could be of help