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Old 07-29-2011, 09:44 PM   #1 (permalink)
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Red face Innovative MTX-L Wiring questions

Hello all,

I recently bought the Innovative MTX-L wideband, heard many great things about it and how easy it is to wire up but I am actually a bit confused on wiring it up properly to the ecu. I am currently using the Hondata S300 p28 ecu, have this installed on a 98 ek hatch. The problem I'm having is that I have the feeling that I do not have it completely wired correctly to the ECU. I currently have the analog 1 wire running to D10 and that's it. Attatched is an image of my settings on the ecu. Am I forgetting to wire something else or do some type of extra wiring? Are my settings wrong. I did find something on the AEM but I dont think the wiring is the same. Any help would be great.
Greatly Appreciated,
Jerry AKA SuperBad
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Old 07-30-2011, 12:08 AM   #2 (permalink)
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Well, Im no tuner, so I dont know about your settings so much. But anyways...

You didnt list any "problems". What is your issue?

D10 is where you want to connect your wideband output. There should be power, ground, narrowband output, wideband output, etc. The wideband goes to D10 as you stated. Now, if you want to run in closed loop (where the ECU makes adjustments to your tune, as stock- normally under certain load settings, and anything above, it switches to open loop), you either need to run the narrowband output to the stock O2 pin (D14), unless you have the stock sensor in. Then I would run the stock for closed loop applications (narrowband). But you obviously need 2 bungs and both sensors at the same time, for that.

Now, if you dont have narrowband hooked up, you need to uncheck the closed loop operations (although, I DO think S300 now has the ability to read narrowband off of the wideband input/output, so you can run only one wire. But Im no tuner, so I cant say that for fact).

[EDIT] Yea, you could leave it with only D10 hooked up. Now, you either need to turn off closed loop, or check the box to run wideband input for closed loop.

Last edited by theidealone; 07-30-2011 at 12:11 AM.
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Old 07-30-2011, 09:29 AM   #3 (permalink)
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Is there any specific settings I need to apply when checking that off? You actually answered my question. And also would I be disconnecting any of the narrowband wires or would leaving them connected cause not cause any problems.
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