NefMoto > Technical > Tuning > Zeitronix Non Linear Wideband Output Logging to ME7
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Author Topic: Zeitronix Non Linear Wideband Output Logging to ME7  (Read 5493 times)
BLK01S4
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« on: April 18, 2016, 02:01:13 PM »
Hi guys its an oldie from 2003, how can I get this to work? Has anyone attempted to use a non-linear with ME7? I have the white wire connected to Bank 1 (green). I did find that I would need custom code to get it working. Any hints?
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nubcake
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« Reply #1 on: April 18, 2016, 03:15:57 PM »
Quote from: BLK01S4 on April 18, 2016, 02:01:13 PM
Hi guys its an oldie from 2003, how can I get this to work? Has anyone attempted to use a non-linear with ME7? I have the white wire connected to Bank 1 (green). I did find that I would need custom code to get it working. Any hints?

Log the raw voltage (uushk_w), then convert to AFR with excel, using whatever non-linear formula there is. Probably the easiest way.
Here's the .ecu line for voltage:
uushk_w, {O2SVoltageSensorWB1}, 0x[Insert your RAM address],    2,  0x0000, {V} , 0, 0, 0.00488281, 0, {}
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BLK01S4
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« Reply #2 on: April 18, 2016, 04:01:19 PM »
0x381116 Thanks. I'll test report back

Doh I missed this. AFR= 2 * V + 9.6 
« Last Edit: April 18, 2016, 04:14:56 PM by BLK01S4 » Logged
nubcake
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« Reply #3 on: April 18, 2016, 04:25:02 PM »
Quote from: BLK01S4 on April 18, 2016, 04:01:19 PM
2 * V + 9.6 

This looks linear to me. Smiley
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BLK01S4
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« Reply #4 on: April 19, 2016, 07:16:29 AM »
yeah it does, now that Ive searched around some more. Undecided I sent an e-mail to zeitronix. See if they have anything.
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BLK01S4
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« Reply #5 on: April 19, 2016, 10:57:25 AM »
Short answer is no there isn't a way. Positive side is the purple wire on my ZT2 since it was from 2006 might dump linear data. Going to scope it out.
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guitar24t
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« Reply #6 on: May 09, 2016, 12:11:35 AM »
If you wanted to use these values in the ECU itself to perform some kind of control, you could enter the transfer function into map form and use it to lookup the AFR (or lambda) value based on voltage input. This would be similar to the way MLHFM works for looking up MAF sensor output values.

If you're only planning on looking at it in a log file, just log the voltage and apply the transfer function later, as nubcake says. It doesn't matter if it's linear or not.
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BLK01S4
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« Reply #7 on: June 08, 2016, 10:17:41 AM »
Quote from: guitar24t on May 09, 2016, 12:11:35 AM
If you wanted to use these values in the ECU itself to perform some kind of control, you could enter the transfer function into map form and use it to lookup the AFR (or lambda) value based on voltage input. This would be similar to the way MLHFM works for looking up MAF sensor output values.

If you're only planning on looking at it in a log file, just log the voltage and apply the transfer function later, as nubcake says. It doesn't matter if it's linear or not.

Thanks ! If it doesnt work I'll just log AFR the old fashion way and have ECUxplot put it all together.
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