What voltage output range is your wideband set to?
The 034 input is 0-1v but you can define the voltage/lambda points.
The 034 input is 0-1v but you can define the voltage/lambda points.
Wiring 02 sensor into Ic ECU
Hey all,
With the diving into tuning that I'm about to embark on, I think it'd make my life a LOT easier to hook my Zeitronix WB setup into my Ic so I can actually log my A/F ratios vs. trying to drive, watch the zeitronix readout and the fuel table on my laptop all at the same time.
After following the 034 pin out diagram and the Zeitronix manual, I hook up the output from the WBO2 to pin 1 (EGO 1+: Black/Red wire) on the ECU. I then hooked up the sensor ground from the Zeitronix unit to pin 16, (EGO 1 -: Grey/Red wire).
After doing that, I noticed that my lambda on the monitor page didn't change past .711, regardless of revving, etc.
So, did I wire it wrong? Is the Ic not compatable w/ the Zeitronix unit? Any BTDT?
Any help is much appreciated.
Thanks!
With the diving into tuning that I'm about to embark on, I think it'd make my life a LOT easier to hook my Zeitronix WB setup into my Ic so I can actually log my A/F ratios vs. trying to drive, watch the zeitronix readout and the fuel table on my laptop all at the same time.
After following the 034 pin out diagram and the Zeitronix manual, I hook up the output from the WBO2 to pin 1 (EGO 1+: Black/Red wire) on the ECU. I then hooked up the sensor ground from the Zeitronix unit to pin 16, (EGO 1 -: Grey/Red wire).
After doing that, I noticed that my lambda on the monitor page didn't change past .711, regardless of revving, etc.
So, did I wire it wrong? Is the Ic not compatable w/ the Zeitronix unit? Any BTDT?
Any help is much appreciated.
Thanks!
1 - 15 of 15 Posts
From the zeitronix manual, it's .15V (9.7 AFR) to 3.27V (21.2 AFR). Found on 2nd page: http://www.zeitronix.com/installation/Z ... ctions.pdf. There's a chart that maps it all out...
So would I adjust the upper and lower ranges in the the EGO/WB setup in the config file? I only noticed two values to change when selecting the wideband O2 setup, so not 100% sure if that's where I'd put this adjustment.
I tinkered with it a little yesterday, but after spending 2 hours in the 95* heat, I decided I had enough (and didn't want to upset the neighbors/police anymore w/ my lapping of the block w/o a muffler... heh). Also wasn't sure if I wired it correctly, but it looks like I did.
So would I adjust the upper and lower ranges in the the EGO/WB setup in the config file? I only noticed two values to change when selecting the wideband O2 setup, so not 100% sure if that's where I'd put this adjustment.
I tinkered with it a little yesterday, but after spending 2 hours in the 95* heat, I decided I had enough (and didn't want to upset the neighbors/police anymore w/ my lapping of the block w/o a muffler... heh). Also wasn't sure if I wired it correctly, but it looks like I did.
Yes, make the lambda values at 0v and 1v correlate with your WB 0v and 1v lambda values.
very good, thanks!
So by using my goggle converter, I'm coming up with .65 lambda (approximating that 0V = 9.5afr based on the remainder of the chart) to .75 lambda for the ~0V to 1V chart... will the ECU do the math for up to the 5V range that the zeitronix unit offers?
Thanks for the help! Much appreciated.
So by using my goggle converter, I'm coming up with .65 lambda (approximating that 0V = 9.5afr based on the remainder of the chart) to .75 lambda for the ~0V to 1V chart... will the ECU do the math for up to the 5V range that the zeitronix unit offers?
Thanks for the help! Much appreciated.
You tell it what 0v means and what 1v means and it does the correlation in between using y=mx+b.
Just load the correct values and it will work.
Just load the correct values and it will work.
Sounds good. But if the wideband uses a 5V range vs. a 1V range in the ECU, will the ECU keep calculating the values up to the max lean (3.27V) reading?? Or is that not as important as the 1V range?
More curiosity than anything... thanks!
More curiosity than anything... thanks!
No, you must alter the output voltage so that it outputs in the 0 to 1v range.
The unit must be reconfigured.
If the unit can not be configured as such, you may use a resistor pair to attenuate the larger signal to
the required input range. You will need to calculate the equivalent lambda at the attenuated voltages.
The unit must be reconfigured.
If the unit can not be configured as such, you may use a resistor pair to attenuate the larger signal to
the required input range. You will need to calculate the equivalent lambda at the attenuated voltages.
ah, OK...
I'm assuming if I need a resistor, I'd need to put it b/n the PIN1 on the ECU and the WB02 output line coming from the computer, right? Any ideas on what sized resistor? I'm falling into my danger zone here, as my calculations for electronics is REALLY rusty (i.e. it's been almost 10 years, and it took me twice to go through my engineering electronics class... lol)... not to mention dangerous... ha.
I'm assuming if I need a resistor, I'd need to put it b/n the PIN1 on the ECU and the WB02 output line coming from the computer, right? Any ideas on what sized resistor? I'm falling into my danger zone here, as my calculations for electronics is REALLY rusty (i.e. it's been almost 10 years, and it took me twice to go through my engineering electronics class... lol)... not to mention dangerous... ha.
I'll be happy to give you the resistor values and config you will need for purchase.
Can the unit not be reconfigured using software?
Can the unit not be reconfigured using software?
I am going to call Zeitronix later this afternoon and see. As of right now, I'm not seeing any literature or manuals that show you how to do this. Obviously this would be the easier/better route so I don't have to figure out how to recalculate the AFR values in relation to the volts... again, entering danger zone for me 
Will shoot you a PM if the system is unable to be converted.
Will shoot you a PM if the system is unable to be converted.
check out this page. Autronic only accepts 0-1v and tech edge's output is 0-5v so the issue is similar yours with the Zeitronix and 034. only we have more adjustability so we dont have to do a 10-1 divider but should do a 5-1 divider. so you will not use their resistor values.
http://wbo2.com/faqs/autronic.htm
http://wbo2.com/faqs/autronic.htm
I have been corresponding with jretal offline and I gave him the values of 2.26k and 1.00k 1% based on the zeitronix datasheet (reduces 0 to 3.26v to 0 to 1.00v).Rocco16V said:check out this page. Autronic only accepts 0-1v and tech edge's output is 0-5v so the issue is similar yours with the Zeitronix and 034. only we have more adjustability so we dont have to do a 10-1 divider but should do a 5-1 divider. so you will not use their resistor values.
http://wbo2.com/faqs/autronic.htm" onclick="window.open(this.href);return false;
This though would only be applicable to the zeitronix since it has a rather odd max voltage output.
yup... resistors have been ordered and should be showing up this week sometime. Then I can tinker and get everything wired up and see if the ECU sees the same values I see on the zeitronix readout screen.
Thanks again for the values!
Thanks again for the values!
1 - 15 of 15 Posts
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