Hey All,
So here's my scenario; 2010 Mitsu RASB, GST Upgraded Boost Pill V2 map, ProSport WB, EvoScan 2.8
I just got my FTDI Serial(RS232) to USB connection, soldered the ground to Pin 5, Wideband Analog Output to Pin 2
Want to get this all set-up to start logging, before I install my Go Fast Bits EBC.
Questions:
1) Select ECU, s/b Mode23 USA RA EVOX, Mode23 USA EVOX, or Mode23 2010 USA RA EVOX???
Based on title alone I would think Mode23 2010 USA RA EVOX; but I'm doubtful because of the lack of fields for logging. There are about 10x's as many fields for the other 2; and if I had to pick one of them it would be the Mode23 USA RA EVOX.
So do I go with the pre-configured non-2010 RA; or do I go 2010 RA and "Edit Data Items\Add New Item" and try to figure out how that works??
2) Also, I popped in the disk that came with the Serial to USB, and it has a bunch of folders. Do I need open some of these files into EvoScan 2.8 in order to log AFR, or does it know to look in this folder for definitions, etc.
Please help, and happy holidays

 

1) It will need to point to the correct addresses for your car in mode23 mode... so selecting the wrong vehicle will have you logging incorrect memory addresses and not getting the information you want. Theres generally quite a bit of information on this, especially in the mode23 logging thread.
2) The serial to USB connector is only for wideband logging. There are a ton of guides on using a wideband with evoscan. Essentially you need to make sure the cable is correct, check that it logs properly with hyperterminal as the AEM instructions guide you to do, then check the correct COM port, wideband model, and logging item in Evoscan.... but it won't work until you are properly logging everything else.

 

OK I got the correct ECU selected for mode23, but I cant get it to recognize my ProSport WBO2. Its not an AEM so there isnt any instructions about "hyperterminal", not even sure what hyperterminal is??
Are there any posts relative to how to log if you don't have one of the 4 brands listed on the WDB menu of EvoScan?
I've searched but everything is for these 4 brands that are "pre-patched" I guess you would call it...?
This is my AFR:
http://prosportgauges.com/wideband-a...ratio-kit.aspx

 

I hope you didn't pay that much for it

You can't log with serial, you will only be able to log with 0-5v according to that listing. You need to wire it into the rear02 input and then determine the correct logarithmic equation to calculate AFR from the bit-wise value. I'm pretty sure there is a thread I made (or at least participated in) about doing so with AEM (or at least LC1) in the CT9A section, but I'm not sure.

Once you input the correct equation you should log the address for rear02 and verify against what you are seeing on the gauge.

I sure hope you didn't wire that 5v output to a serial connection. You may have fried the adapter and whatever else it connects to.

 

???
Now I'm confused I was told I need to solder the ground and wideband analog output to a serial to USB connector (I used this one)
http://www.evoscan.com/evoscan-gps-o...-adapter-cable
Per the instructions, there are 3 wires for output, 1 ground, and a wide/narrow band outputs.
On another thread I was told to get the above RS232 adapter, and I would be good to go.
So now you are saying I need to splice the Wideband Output into the rear o2's input? I do recall seeing the thread https://www.evolutionm.net/forums/ev...ut-serial.html
With the sheer volume of threads relative to people having problems getting their WBO2 to log, might I suggest a sticky with centralized info? 90% of the threads dont have any resolutions mentioned.

 

And no, I got it for $175 shipped from a different vendor (IIR)
Another issue possibly,
I turned off the rear o2 via tephra's thread, due to CEL (turned off in ECUFlash). Will this affect me splicing into the signal (if I understand correctly)?

 

Unless the device has a different output than is mentioned in that product listing it is only a 0-5v output. I don't see a serial connection mentioned anywhere on the product page for the pro-sport, so I'm not sure which instructions told you to splice a random analog signal-wire into a serial device. Maybe if you post the instructions for the device or the actual text used to describe the 3 outputs we can be of more help.

IMHO I don't think the information is that hard to find. Too many sticky's and their value becomes less.


No, you need to turn off the rear02 to prevent it from going bat**** crazy since you are feeding it a totally different signal than it is expecting. At that point the ADC input on the board will still spit out a bit-wise value to describe the voltage you are feeding it (within its range), it just won't be checking against the front 02.

 

It has 3 wires for the logging output: a ground (brown), a narrow band output (green), and a wide band output (black). SO right now I have the black and brown wires attached to the serial-to-USB output.
I'll find the instruction sheet when I get home and see if I can scan and attach an image here.
When I splice into the yellow wire for the stock o2, do I splice in the wideband (black wire) from the AFR? And do I need to ground it as well (brown wire)?

 

FYI, as I'm sure you are quite aware, you were correct. I re-wired it as the rear O2 patch in, and its all good. The EVAL is completely different than from tephra's 08 (I kinda thought it would have been similar, albeit slightly different).
Thanks againg for your help

 

Since you solved, I'm just posting that I assume you grounded the unit and connected black to the yellow wire for rearO2.

Yup, you'll just need to re-work the logarithmic equation for your particular range / linearity.

That said, please note that I regularly see a .2-.4 difference in AFR via the ADC analog input compared to serial. At WOT it is generally <.2 but keep an eye on that. A good ground is very important here, and a bad one can throw that off even more.

 

Yep Black to ADC, and brown is actually wrapped around a bolt screwed into the center console (passenger side next to left foot, behind the plastic interior). I ran out of eye-hooks, and I didn't think it was crucial to run an extra 3 feet a wire to run it back to my distribution block.
Now here is a little issue. The ADC formula I got from Bryan (razor) was completely different than tephra's ADC formula (to plug in for V) which helped with one of the issues. I have 0v=10 and 5v=20, so my EVAL is 2*(ADC)+10. But the thing is EvoScan shows an AFR exactly 1.0 below the gauge. I live at virtual sea level (2 miles from the beach on flat farm land, maybe 100 ft above at most); both my gauge and the Fuel map show 14.7 for idle, while the EvoScan shows 13.7. Even when driving its always off by 1.0. SOOOOO, is it the ground (since you said that is so crucial; I'm not grounded into the frame, but the metal sub-structure for the center console) or should I just change my formula to 2*(ADC)+11??
Thanks,
Steve