So if im reading right, you used the digital input on the k3 board. Any differences fron just hooking it to the 8 lead pigtail that hondata includes with kpro 3? Also, I am installing the AEM Failsafe, not sure where im putting the safety lead into, but its it kosher to splice that wire so it also feeds data (o2 wideband voltage) into the kpro board?

I have a hunch, simply on my own observations that Hondata may end up supporting wideband feedback into kpro after all... I am not stating this from a reliable source nor is it confirmed by hondata. But after some digging, their own build of a digital input that can tolerate a 5v signal may be a strong hint that they may possibly end up coding for wideband feed back after all.... lets just keep our fingers crossed!

Anyways, after abit of reading http://www.aemelectronics.com/wideba...safe-gauge-84/ Looks like this thing is an awesome addition! It has an analog lead that we can plug into the Kpro analog pigtail for datalogging on the kpro board as well! Since im not well versed in much of this, where would be the best place to wire the One low-side driver output (Ground with 1.5 amp max draw) to trigger when it detects a lean condition?

 

I did use the digital input. The 8 lead pigtail is for analog inputs.

Tim

 

Nice DIY thread! However, I'm having trouble with the sensor setup. I can input all the values in the parameters window. When I goto the sensor setup (options...sensors) and pull up the DI0, I cannot change the units! The drop down menu only selects volts (V). I can change the name and description only. It is as if the information I put in the parameters menu do not save. Did I miss something???

I have the Kpro III with updated software. I do not have the car turned on while I'm configuring my settings and sensors.

Thanks in advance!

 

You didn't miss anything. You can only rename the sensor and change its range in the sensor setup.


Tim

 

When I change the min/max settings it gives units in volts only. It will not let me change the units from the pull down arrow. In your pics, you have your units as air fuel ratio in the sensor setup.

 

Interesting. Last night when I was in the latest bata, with the same map I took screen shots of, mine also showed volts. I didn't even realize that it previously showed AFR until you mentioned it. So long as it matches the gauge, I wouldn't worry about it. Unfortunately, my car is down right now so I can't check whether it's still behaving correctly even though it shows volts.

Tim

 

Quick follow up to the original post.

The KPro 3 will read and graph the WBO2 digital input, but will not yet use it for the fuel adjustment calculations in the Table view. This is something that has been requested, but not yet implemented by Hondata. You can tune without these, but it is much easier/faster with them. As an alternative, you can use the SM-AFR analog output on the A0 input of the KPro and keep it on the digital input too. Then, you can see if there are any voltage offset issues within your datalog, the fuel adjustment works, and the accuracy of the digital input remains. For anyone setting one of these up from scratch, this is what I would recommend.

Tim

 

Good write up! I assume when either an analog or digital wbo2 signal is sent to kpro, kpro will show the actual wbo2 reading?

I say this because on my kpro (not kpro3 yet) i can never see the wbo2 values through the eld input.

Sent from my Samsung Galaxy S4

 

Yes, It can read the values through either analog or digital inputs and graph them, but it can only use the analog, ELD, or built-in wideband for the fuel adjustment table (not yet the digital input).

Tim

 

Alright. Thank you for all of your knowledge!

Sent from my Samsung Galaxy S4