Page 1 of 2

Upgrade ELM327 v1.2 (fake 1.5a) from 9600bps to 34800bps

Posted: 25 Jun 2010, 15:03
by oem
Hello, you can made your ELM327 1.2 metal (1.5a fake clone) or plastic 1.3 from 9600bps to 34800bps. See pictures :)

Re: Upgrade ELM327 v1.2 (fake 1.5a) from 9600bps to 34800bps

Posted: 25 Jun 2010, 15:12
by EnIgMa
i don't get it....

what should i do?
i probably have one like first picture...do i have to solder a cable like 3rd picture?

Re: Upgrade ELM327 v1.2 (fake 1.5a) from 9600bps to 34800bps

Posted: 25 Jun 2010, 22:30
by oem
I edit the post. In first post is ELM327 1.2 (1.5 fake version). Now, here is the plastic ELM interface.

Re: Upgrade ELM327 v1.2 (fake 1.5a) from 9600bps to 34800bps

Posted: 26 Jun 2010, 00:45
by BR-Scan
Hello,I'm very interested in this mod. Could you give us more details? The picture doesn't show where the other side of the jumper is connected. Pin 6 of the obd plug?

Re: Upgrade ELM327 v1.2 (fake 1.5a) from 9600bps to 34800bps

Posted: 26 Jun 2010, 15:36
by oem
No, no connect pin 6 from OBD connector. Pin 6 from Microchip to 5v. and remove/unsolder resistor R24 from sheme. Is this :) When this manipulation try to connect with 34800 boud. :)

Re: Upgrade ELM327 v1.2 (fake 1.5a) from 9600bps to 34800bps

Posted: 26 Jun 2010, 20:33
by lenivec
an for what is this mod useful? i have plastic 1.3 clone and everything works ok.

Re: Upgrade ELM327 v1.2 (fake 1.5a) from 9600bps to 34800bps

Posted: 27 Jun 2010, 01:43
by BR-Scan
Brilliant!

I tested, it works! 38400!

Does it actually changes the speed or just fools the application?

Is it safe?

Re: Upgrade ELM327 v1.2 (fake 1.5a) from 9600bps to 34800bps

Posted: 27 Jun 2010, 09:20
by oem
There is a difference in the CAN protocol. There ECU support at higher speeds.

Should not have a damage control unit or ELM. However, do it at your own risk!

For me, this modification was necessary in consequence of the use of some other software the connection with CAN-BUS and using this ELM327.

Re: Upgrade ELM327 v1.2 (fake 1.5a) from 9600bps to 34800bps

Posted: 27 Jun 2010, 12:32
by BR-Scan
OK. So, have you been using this and didn't have any problems?

Where did you get the idea?

Re: Upgrade ELM327 v1.2 (fake 1.5a) from 9600bps to 34800bps

Posted: 27 Jun 2010, 13:15
by oem
I use it and no problems. I took the idea from another forum where they describe in detail the operation and say it works and no problem.