WB O2 output

Post by **Holden202T** » Sat Aug 17, 2013 7:39 pm

its probably worth plugging into the serial port of the MTX-L and checking!

vc81 · Post by **vc81** » Sat Aug 17, 2013 7:55 pm

Ok thanks holden 202t. So what should I be looking for?

Post by **Holden202T** » Sat Aug 17, 2013 7:58 pm

it will tell you what the o-5v settings are set to.

vc81 · Post by **vc81** » Sat Aug 17, 2013 8:10 pm

Ok thanks mate. Looks like I'll have to chase up a usb to serial adaptor. Do you know of any good ones?

Post by **antus** » Sat Aug 17, 2013 9:18 pm

Look for one with an FTDI brand chipset.

EagleMark · Post by **EagleMark** » Sun Aug 18, 2013 2:24 am

With the LC-1 you can change the 0-5 volt to whatever you want. Not sure about MTX-L as I've never had one but instructions look to use same LM Programmer?

For TunerPro conversion on Innovate default AFR of 0V = 7.35 AFR and 5V = 22.39 AFR

AFR of 7.35 to 22.39 is a difference of 15.04 divided by 256 = 0.05875

Conversion for this would be:
(X * 0.05875) + 7.350000

Heads up for you guys and FTDI Chips, drivers and cables!!! We found some issues either with chips or updated drivers or? FTDI has been sent chips from same batch that some will and some will not work with new drivers but do work with old drivers. Not sure yet but some info here:
http://www.gearhead-efi.com/Fuel-Inject ... #post26827

Post by **antus** » Sun Aug 18, 2013 9:21 am

VL400 wrote:12P is different, there are two scalars to change and the ECU handles the calc for you - it should always be left as X/10. Set "VE Learn Params - WideBand 0v AFR" and "VE Learn Params - WideBand 5v AFR" to suit the wideband - so 0V to 10AFR and 5V to 20AFR with a 14point7 kit if that is what the output is set for (there should be instructions with the kit that specify the output).

Just watch out for that eaglemark, when people are running 12p.

EagleMark · Post by **EagleMark** » Sun Aug 18, 2013 9:23 am

I've got some catching up to do with you guys across the pond...

vc81 · Post by **vc81** » Thu Aug 22, 2013 6:34 pm

vc81 wrote:
benk wrote:have an issue with my WB O2 sensor doesn't seem to be reading correctly in Tunerpro.
I have a 14point7 kit installed and the readout is around 1 unit out to what Tunerpro is reading. Wanted to check output range on the Wideband and input in TP to make sure that they are the same. I can remember reading something about the settings a while ago but can't seem to find the post. Can find what the settings are on the wideband controler but not sure where to find them in TP
I have exactly the same problem but with a mtx-L. The wideband 0V & 5V scalars are set on 7.30 & 22.4 which I believe to be correct for the mtl=l. Any ideas why the mtx=l gauge readout is different to the TP dash readout?

Ok - I have connected to the MTX-L with the serial cable and the settings in LM programmer are correct. The 0-5 volt readings are the same as set in TP. (7.30 & 22.40) When using the logworks program the readings are the same as the MTX-L gauge.
Any ideas why the wideband dash gauge in tunerpro reads differently??? It's about .6-.8 leaner than the MTX-L and logworks readings.

Post by **antus** » Thu Aug 22, 2013 6:56 pm

Which code base (12p?) and how did you configure tunerpro/the ecu for the mtx-l?

WB O2 output

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