User Tools

Site Tools


mtxinstall

Recommended Innovate MTX-L Installation

Installation of the Innovate MTX-L wideband gauge kit is pretty straight forward. The MTX-L Installation manual covers most of the basics for a general install. We do, however, have a few specific suggestions below.

ECU wires

The following is provided for reference in the sections that follow. You can also get detailed pin out information, including ECU wire colors, off our ECU wiring page.

ECU Connectors (viewed with male pins pointing out towards you
1G DSM
2G DSM
EVO1-3

Basic MTX-L wire assignments

LC-1 wire Description Typical install point 1G DSM 2G DSM EVO1-3
Red 12V supply Switched +12V source, fused 102 or 107 12 or 25 12 or 25
Black Ground Chassis ground lug 101 or 106 13 or 26 13 or 26
Yellow Analog out 1 Selected ECU input 4 (or 15, 16) 76 (or 73, 75, 85) 56
Brown Analog out 2 Unused N/A N/A N/A


RED wire - notes

The red wire typically goes to a switched +12v source. The ECU pins listed above are good choices if you're wiring near the ECU. This wire would also typically be fused with at least a 3A fuse.

BLACK wire - notes

A good, solid high-current grounding point here. The ECU pins listed above are good choices or you can try a good, clean chassis ground point too.

YELLOW and BROWN wire - notes

The YELLOW wire is defined by default to have a mapping of 0V = 7.35 AFR (0.5 lambda) and 5V = 22.39 AFR (1.52 lambda). This will work nicely using ECMLink's LC-1 datalogging item. So run the YELLOW wire into your selected ECU input for logging and then configure ECMLink to use this input for the LC-1 log item (ECU Inputs tab) and, optionally, for the narrowband simulation function as well.

The BROWN wire from the MTX-L is defined by default as the “narrowband” simulation output. Because you're using ECMLink, you can leave this wire disconnected (but isolated from ground with some heatshrink or electrical tape) and simply use ECMLink's narrowband simulation function instead.

Sensor location

We generally recommend installing the MTX-L's wideband sensor in the front O2 location directly off the turbo. That is, of course, if you plan to run without a narrowband sensor installed in that location. We have been running our sensor in that location for years without issue. We do not believe there are any “heat” concerns what so ever.

Narrowband sensor

When running an MTX-L wideband, you can simply enable narrowband simulation in ECMLink and use nothing but the MTX-L's analog output for both wideband data and narrowband closed-loop operation.

However, if you have the option of running both a wideband sensor and a narrowband sensor, considering doing so. This is probably more common on a 2G where you can run the narrowband sensor to the factory Front O2 pin while logging the wideband sensor on the factory Rear O2 pin, but there are enough inputs on a 1G to do the same thing.

The advantage to running a factory narrowband is that you get a good data point for checking up on the LC-1's calibration. The narrowband sensor is going to switch around stoichiometric. It's really good at that. So as long as you're running in closed loop operation using the factory narrowband sensor, you should see an MTX-L logged value of about stoich as well.

It's not a big deal either way, though. So don't go out of your way to make it happen. If it's convenient, great, give it a shot. If it's not, don't worry about it.

mtxinstall.txt · Last modified: 2014/03/12 06:01 by twdorris