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Old Feb 8, 2020 | 06:56 PM
  #6450 (permalink)  
rbracy10406's Avatar
rbracy10406
Joined: May 2016
Posts: 66
Likes: 10
From: New Jersey
Default Re: What did you do to your Crossfire today?

So ive been driving it back and forth to work with the new LCD cluster and everything has been working great...almost...

I was having an issue once and a while where my fuel gauge would drop to zero and trigger the low fuel warning on in the original gauge cluster circuit behind the LCD. I believe it has to do with the way I am tapping into the circuit on the board and possibly causing some interference. The way the original cluster reads the fuel level is by sending a low current pulse (square wave) through the fuel sending unit. as the resistance changes from the fuel level, it will load the circuit down and make the square wave smaller or bigger. I tapped into this and read the amplitude of the square wave originally and it is working great on the LCD part but it is triggering false alarms on the original cluster circuit. To remedy this, I cut the pigtail at the fuel sending unit and stuck a resistor in its place to trick the original cluster to think it always has a half a tank. I then ran a wire to a new microcontroller I am in the works of building that will connect to my custom network and will be a path for future development on the back half of the car (cough cough -- custom led taillights) as well as tap into the existing blind spot and back up radars I have installed behind the bumper. While I was back there, I also replaced all of the broken trim clips I have abused over the years by ripping everything apart to add things here and there.

Wire run for the fuel sending unit


New connection for fuel sending unit (in fabric wire loop to help with chafing)

Blind spot radar controller in rear of trunk

I was also curious as to how everything looked when people drive by and night (if it was noticeable distraction). It does stand out in both the drivers side and passengers side but I don't think it is overkill. I think it give a nice look


After this, I will start on the cosmetics of the bezels and the dash. Its pretty much just tweaking and making it looks nice from here!
 
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