anyone installed a innovate mtx-l

[custom e30]

ok, i have a ton of questions but im gonna ask a couple questions at a time, im sure this has been covered plenty of times but i cannot find any direct anwsers for my situation.....so as mike goldberg says "HERE WE GO"

1.should i remove the stock o2 sensor? sense i bought and installed the wideband kit from innovate?

p.s. here is the kit i purchased...

http://www.ebay.com/itm/110994437201?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649

2. im lost on how to hook the kit up to the ecu, meaning the BROWN which is analog out put 2 and yellow i analog out put 1, ive read the instructions and is like reading a foreign language, i suck! at wires and electrical in general, could us some real help here

[custom e30]

wow no response, very suprising....

[LowR3V'in]

It's in the instructions.
What's your question?

[bmwguy325is]

Im going to say you are in over your head here.
Im pretty sure you dont want to ditch the stock o2 sensor.

[deutschman]

That hurt to read.

Whats so hard to understand here. Red is a switched power source. Black is a ground, and white is a light dimming wire. If you can not understand that you shouldnt be attempting this install and you should pay some one to do it for you. Yellow and/or brown is an otional wire you will not need unless you add other systems like a data logger.

1. Connect the RED wire to a switched 12V source. A switched 12V source goes on as
soon as the ignition on the car is on. Make sure the connection is fused with a
minimum fuse size of 3A.
2. Connect the BLACK wire to a ground source. Avoid noisy ground sources, such as
grounds used for radio and or ignition sources.
3. Connect the WHITE wire to a headlight power wire (a wire that supplies current to
the headlights). This enables the display to dim for better nighttime viewing. DO
NOT CONNECT THIS WIRE TO THE HEADLIGHT DIMMING WIRE. Connection to
this rheostat type of switch will cause the gauge to malfunction. If you chose not to
utilize the dimming feature, connect the WHITE wire to ground.
4. Optionally, the YELLOW (Analog out 1) and/or BROWN (Analog out 2) can be
connected to the analog inputs of other devices such as data loggers or ECUs. If
either one or both of these wires are not being used isolate and tape the wire(s) out
of the way. The default analog outputs are as follows: Analog output one (yellow) is
0V = 7.35 AFR and 5V = 22.39 AFR. Analog output two (brown) is 1.1V = 14 AFR
and .1V = 15 AFR. This is a simulated narrowband signal.

The O2 censor that came with the gauge kit need to be installed separately from the stock O2 censor. Get an exhaust shop to weld the 1" bung onto your exhaust and screw the Innovate censor into it. Easy as pie.

On CATALYTIC CONVERTER equipped vehicles:
Install the oxygen sensor’s bung upstream from the catalytic converter (a bung is
included in the MTX-L kit). The bung must be installed in the exhaust pipe at the side
or on top, NOT on the bottom of the exhaust pipe. Any decent muffler or exhaust
shop can do this for you. The wide-band oxygen sensor is then installed into the
bung to take a reading. The ideal position is between 10:00 and 2:00 position.

[aka-e30]

Anybody know of a good switched 12v souce and ground to use for the guage in our cars? Ive got the bung welded up and everything all i gotta do is wire up my guage and plug it in. Just not sure what wires to use yet. any help would be much appeciated.

[kamotors]

Innovate Mtx-l works great and installs easy. there is a 12v wire in the glovebox I use to power mine, and ground at strut tower, the OEM O2 sensor harness looses signal at 3krpms for some reason on 2 out of 2 E30's I've installed it on.

I have it so
power in glovebox
Ground at strut tower
yellow wire to MS.

[karmatose]

yellow wire to MS.

Do you have it going directly to pin 28 on the ecu harness side? Or did you reuse the pigtail from the factory o2 sensor?

[nando]

you really want to ground it at the DME, or you can end up with ground offsets that cause your sensor to read incorrectly.

if you have MS it makes a lot of sense to reuse the wires from the original sensor, you get a relay to power it on, 2 grounds and the (shielded!!) signal wire straight to the DME.

[karmatose]

Thanks!

I don't have MS just yet. Going to use simulated narrowband to Motronic for the time being, just thought this would be the most relevant place to ask my question.

So if I have this right:

-Find 12v somewhere.
-Ground the MTX-L at the DME
-Also ground the lighting wire
-Brown wire (instead of yellow as i'm after simulated narrowband) on MTX-L to pin 2 on the factory o2 harness (which goes to pin 28 on the DME connector) AKA the black wire on the o2 side.

Look good?

Edit: My idea works fine. Took my old narrowband o2 sensor, hacked off the connector, ran it into the cabin through the engine harness hole and attached the brown lead (or for you guys using programmable efi like MS, yellow lead) to the black wire on the o2 harness. This leaves the stock wiring intact in case I want to change it back. No CEL's with narrowband emulation either.

Also, grabbed my switched power from the radio and grounded out the mtx-l at the DME.