[HOW TO] Tune and Modify IAW15P ECU!

[Tafka]

Originally Posted by MercyFlush

Gday,
Try to get an FTDI FT232RL OBD cable as this will give the best results, however I have heard that others have gotten the cheaper knock offs to work for simple things such as CO Trim adjustment and TPS Reset etc.

I have a cheap eBay VAG OBD and i'm able to reset TPS, adjust CO trim and also reads map without problems
I bought this one: http://www.ebay.co.uk/itm/Fiat-3pin-...item3a94bbeaac

[MercyFlush]

Okay so update time.

If you are getting any errors in regards to the "Flash info Failed" or "Checksum Failed" etc. There is hope!

I tried a multitude of USB>Serial chips in front of my LM339 that hooks up to my OBD connector. Turned out that the LM339 was damaged.

I suggest opening up your usb to OBD connector and checking the following.

-Ensure Pins 4 and 5 are connected together (top row middle).
-Ensure that the connections of the pins 4-5, 7, 15 and 16 show continuity all the way through to your gasgas harness connector. If not then I suggest using some alligator clips and wire to get the job done! You can get the K and L lines mixed up and not worry about it, just flip them if it's not working

Finally, I suggest downloading the Guzzi Diag / IAWDiag Adapter Test.
This test should return a success, and if not then you have a damaged chip or connection somewhere.

[RoyalAl]

What if Adapter Test shows success, should I open it and check it anyway?

[MercyFlush]

Originally Posted by RoyalAl

What if Adapter Test shows success, should I open it and check it anyway?

Yes I would do that absolutely.

Firstly though, make sure in the settings in 'Device Manager' you have set the timing to 1ms (or put the buffer to largest and the lowest as a test).
If you have an FTDI cable try the drivers on the following website, see the images on there for the settings for 'Device Manager'
http://www.von-der-salierburg.de/download/GuzziDiag/

If it's still not working then I would definitely check the electrical connections.

Timing plays a large role in the writing of the BIN, try reading the ECU again, and if it fails then you definitely have an issue somewhere, even if the thing reads success in the adapter test.
EDIT: Also, I suggest hoping the battery up to a charger and then doing the tests. With too low of a voltage the ECU will not enter the diagnostics mode.

[RoyalAl]

Still no luck. Did everything as you mentioned above. I can connect with GuziDiag and read the map with Reader, but trying to upload new map with Writer I get an error: This file does not fit your ECU. And my battery is 12.4 V.

[MercyFlush]

Originally Posted by RoyalAl

Still no luck. Did everything as you mentioned above. I can connect with GuziDiag and read the map with Reader, but trying to upload new map with Writer I get an error: This file does not fit your ECU. And my battery is 12.4 V.

Okay so if you can upload a copy of the BIN you Read from the ECU then we can compare with the BIN of the FSE400 and hopefully get this sorted

[RoyalAl]

That would be awesome!
Heres is my new ecu map BIN.
http://www.megafileupload.com/dk2q/new_ecu_map.bin
Thank you very much for your time.

[fastisbetter]

OK, so I know you said to buy the cable, but, funds being tight and not wanting to wait 6 weeks, I have on hand an autoenginuity scan tool adapter that plugs into OBDII port that is ISO 9141-2 compliant. I also have the female obd connector and some terminals to fit the 3wire on my bike. I just need to know the pinout from the bike to the OBD connector

[Tafka]

Originally Posted by fastisbetter

I just need to know the pinout from the bike to the OBD connector

Google is your friend...
Picture

[MercyFlush]

Originally Posted by Tafka

Google is your friend...
Picture

This guy gets it!

Also, the link I keep having to paste has it ALL there, diagrams and all
http://www.von-der-salierburg.de/download/GuzziDiag/

No damage will be done if you accidentally mix the K or L lines, Just swap them until it works. Make sure to do an 'Adapter Test' with the program form the above website.

You will need to ensure battery power + goes to pin 16 on the OBD and ground goes to BOTH pins 4 and 5.

Goodluck