AEM wideband and EvoScan issues

xmaciek82x · Oct 30, 2009, 01:35 PM

Hello Everyone, I just hooked up my AEM wideband. The wideband works fine but when I try to log it using evoscan, the logging table for WIDEBAND gets stuck at the same number in about 3-4 seconds into the logging process. So 3-4 seconds of regular loging, and the just stops at a number, like 14.5 all the way down.

Anyone ever experience this?

When I soldered the blue cable to pin 2 I didn't solder anything to pin 5 because I read it was not needed. Could this be the issue? Should I just take a regular wire and solder it to pin 5 and just ground it in the car somewhere?

Thanks

evokid511 · Oct 30, 2009, 03:02 PM

i have the exact same issue! mine holds 14.7 all the way to redline... i believe its your serial cable thats what i think my problem is... the chip inside the serial cable is said to be the same one a tactrix cable uses and that screws with evoscan... gotta find a serial cable with out a chip in it like this one its the one i just ordered so we'll see soon if it wokrs http://www.radioshack.com/product/in...ductId=2273291

xmaciek82x · Oct 31, 2009, 09:26 AM

Do you have pin 5 soldered on?

I'm using this cable:

http://www.newegg.com/Product/Produc...82E16812150046

Let me know if getting the new cable works.

Anyone else?

SoCal Rally · Oct 31, 2009, 10:39 AM

You do need ground connected to pin 5 since the (virtual) serial port in your PC needs a ground reference for the serial data stream (confirmed by the link to the AEM Installation Instructions PDF contained in the link I posted below). Connecting it to anywhere in the car may work, but ideally it should be connected to the ground connection on your AEM (it's probably easiest/neatest to route it that way too, since you are already routing the blue wire carrying the serial data stream from there).

Using a USB-serial cable with the same chip inside as the Tactrix cable, i.e. a FTDI chip, should not be a problem. You just have to be careful to select the right virtual serial port in the WidBand (WDB) drop-down menu in EvoScan.

Read this for more info:
http://forums.evolutionm.net/6957804-post2.html

You can also use HyperTerm / TeraTerm / your favorite terminal logging tool to verify the serial data stream coming from the AEM wideband.

evokid511 · Oct 31, 2009, 11:00 AM

thank you for that that was a good read ill have to order that one form zeitronix... but i did the same set up a you describded in the link you posted above and selected my com ports and it still didnt register correctly so the chip in some serial cords does effect it

xmaciek82x · Oct 31, 2009, 11:03 AM

THANKS!

On question I still have about ground. Do I just tap into the black wire? I mean that EAM black wire needs to be grounded when the usb it no pluged in right? So going directly from the gauge to pin 5 would not really work correct?

Currently I'm using the ground from the cig lighter, if I just take another wire and tap into that I should be good?

SoCal Rally · Oct 31, 2009, 11:18 AM

The black wire from the AEM still needs to be grounded whether you are using the serial data stream or not. Tap into the black wire (or connect to the same ground point the black wire is connected to) for the ground for the serial data stream.

xmaciek82x · Nov 2, 2009, 04:29 PM

So just finished solderig the ground to pin 5. Same results. Wideband logs for about 4 seconds and stops.

So what usb to serial adapter is everyone using that works?

evokid511 · Nov 2, 2009, 06:54 PM

exactly what mine does also... i just ordered the one zeitronix has for sale and will be trying it out next week!

xmaciek82x · Nov 3, 2009, 09:00 AM

evokid511,

What evoscan versin are you runing? I was on 2.6 when it did not owrk. Last night I upgraded to 2.7beta5 and it works now.

travman · Nov 3, 2009, 10:09 AM

yea it was a known issue on 2.6.....aem works fine on the latest beta, I had the same problem on a friends car with an AEM wideband and upgrading to the latest beta solved the problem.

evokid511 · Nov 3, 2009, 11:20 AM

Quote:

Originally Posted by xmaciek82x

evokid511,

What evoscan versin are you runing? I was on 2.6 when it did not owrk. Last night I upgraded to 2.7beta5 and it works now.

oo man thats awesome im going to upgarde right now and see if it works... where do i go to upgrade???

**MR Turco** · Nov 3, 2009, 11:43 AM

Quote:

Originally Posted by travman

yea it was a known issue on 2.6.....aem works fine on the latest beta, I had the same problem on a friends car with an AEM wideband and upgrading to the latest beta solved the problem.

which beta? I have had issues logging the AEM for sometime with evoscan.

evokid511 · Nov 3, 2009, 11:48 AM

EvoScan v2.6 And New EvoScan GPS/Logger/Reflashing Touchscreen Review

post 1111 explains how to do it and post 1113 is the right file to upgrade to 2.7 beta 5

xmaciek82x · Nov 3, 2009, 11:58 AM

Quote:

Originally Posted by MR Turco

which beta? I have had issues logging the AEM for sometime with evoscan.

EvoKid is correct.

The first page actually has the download link.

EvoScan v2.6 And New EvoScan GPS/Logger/Reflashing Touchscreen Review

Once you download it, you get 2 files, the evoscan.exe on and the data file. I just copied and pasted both files over the existing ones and works fine. Just be warned, I had to redo my setting in evoscan.