Announcements

Over the last couple years the priorities in my life have changed. Had Matrix Garage grown big enough to hire enough employees and leave them to running it while I pursued other things I would have happily taken that route but it has generally stayed just big enough to keep me working overtime. 
I have decided to start focusing my carreer and passions elsewhere and that means that supporting the AW, AE, 4A and related communities has had to be moved much lower on the priority list. I have decided to keep the store up to provide parts that only we offer, or other things that are hard to come by elsewhere. You will notice many big name, readily available products have been taken down and we will continue to do so. It's just not worth our time trying to compete with the big corporations selling at cutthroat prices and it just takes up more of my time. 
I will try to keep providing those parts that we make or that we have developed and sell as a service to the community but understand that now this is something I do in my spare time because I don't want to leave people hanging. 
I try to make shipments and process orders at least twice a week. If you want Amazon next day shipping buy from Amazon. I will do my best to keep order time and customer service at a reasonable level but have some understanding. I am not making money on this and it takes away from my other work and other issues that are very important to me right now. 
I have always wanted to make our designs and other information open source and available to the community but to do so properly would take a lot of time making sure that models and drawings were complete, accurate, or properly described. To go through everything and make sure it was something that I felt comfortable releasing to the community. I would love to find someone who was willing to help me do this. Someone in engineering school or passionate about this to help go through 3D scans, CAD designs, and information to prepare it. If you are interested feel free to email me. 


 

 


 

How to replace your 02 sensor with a LC1/LC2 or other wideband with narrowband emulation

This is how you can use an LC1 to emulate your stock NB sensor. The diagram is for a 4 wire system.
With the 4 wire you will be using the power source that powered the old NB sensor.
The gauge kit can be purchased here. http://matrixgarage.com/products/innovate-db-kit

Here are the basic LC1 instructions
http://www.innovatemotorsports.com/s...C-1_Manual.pdf

This is the stock setup. Don't mind the erased part that was for a different diagram and I never got around to updating the image.
The complete diagram can be found here though.
http://www.matrixgarage.com/pictures/1988-Toyota-MR2-Wiring-Diagram.png

Now with the LC1 wired in

If you don't use a resistor going from power to HT you will get a CEL. I have been working my way up to find the highest resistance smallest resistor possible. Bigger resistors use more power and create more heat. 50 OHM is the highest I have gotten but it may be possible to go higher. I will update when I play with this more.
If you use a 50 ohm make sure it is rated for 5 or more watts. This resistor still gets pretty hot to the touch but it's acceptable. If you plan on trying higher resistance use this formula to calculate the wattage resistor you should use. *
voltage*voltage/ohms. For a 50 ohm resistor on a 12v electrical system with a little buffer that is 14*14/50 = 3.92. Always round up to at least the next size larger.
Thanks to rmeller and a few other electrical gurus for teaching me how not to blow up my car with resistors
Once it's wired check to see how hot the resistor is getting and make sure it's not close to anything that could be sensitive to that heat. Also realize it will get a bit hotter when the car is running and the alt is charging.

Make sure you ground the LC1 to the same ground as the rest of the vital electronics.
It is highly recommended you ground the gauge at the same source.

For a single wire you will need to find a power source. You can probably use the same circuit but it won't be staring you in the face. You also don't have to deal with putting the resistor in line from the power wire to the ECU ht pin since there isn't one.

courtesy of webmatter.de