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Re: FAULTY ELM 327 INTERFACES DE-MYSTIFIED (READ HERE)

Posted: 26 Apr 2025, 21:42
by hero_1016
Darkburrow wrote: 08 Jun 2024, 19:35 Did i buy a Dud, this does not look right at all ? :/

Mine looks nothing like anyone elses on here, is mine a China-fake? It doesnt even say "ELM327" on it.

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I have the same and don't know what to do!

Re: FAULTY ELM 327 INTERFACES DE-MYSTIFIED (READ HERE)

Posted: 22 Jun 2025, 19:09
by Rate
Exxagerator wrote: 07 Apr 2025, 06:26 Hi Guys
I want to share with You all what I came across when looking here and there how to do proxi alignement in my 2003 punto 1.2 8v.
I've got two interfaces from aliexpress with which I managed to succesfully do proxi alignement:
1) you must desolder from pcb - Big thanks to oskar69 from page number 227
It is this one: OBD2 Car Diagnostic Tool elm 327 HS CAN /MS CAN ELM327 USB V1.5 FTDI/CH340 PIC18F25K80
elm327.PNG
https://pl.aliexpress.com/item/1005006083281661.html?spm=a2g0o.order_list.order_list_main.143.44591c24s9JzEI&gatewayAdapt=glo2pol
Then desolder 1200 resistor (120 Ohm resistor) between pin 6 and pin 14, it is located near pins for OBDII socket, you will manage to find this
IMG_20170806_184553.jpg
2) you don't need to solder anything: Vgate vLinker FS ELM327
https://pl.aliexpress.com/item/1005005065055828.html?spm=a2g0o.order_list.order_list_main.113.44591c24s9JzEI&gatewayAdapt=glo2pol
FS.PNG
I was able to connect with MES and have no problems so far.
Wish you luck :D
Thank you very much for share info,Vgate vLinker FS ELM327 work excellent on Multiecuscan.

Re: FAULTY ELM 327 INTERFACES DE-MYSTIFIED (READ HERE)

Posted: 24 Jun 2025, 15:26
by hero_1016
Exxagerator wrote: 07 Apr 2025, 06:26 Hi Guys
I want to share with You all what I came across when looking here and there how to do proxi alignement in my 2003 punto 1.2 8v.
I've got two interfaces from aliexpress with which I managed to succesfully do proxi alignement:
1) you must desolder from pcb - Big thanks to oskar69 from page number 227
It is this one: OBD2 Car Diagnostic Tool elm 327 HS CAN /MS CAN ELM327 USB V1.5 FTDI/CH340 PIC18F25K80
elm327.PNG
https://pl.aliexpress.com/item/1005006083281661.html?spm=a2g0o.order_list.order_list_main.143.44591c24s9JzEI&gatewayAdapt=glo2pol
Then desolder 1200 resistor (120 Ohm resistor) between pin 6 and pin 14, it is located near pins for OBDII socket, you will manage to find this
IMG_20170806_184553.jpg
2) you don't need to solder anything: Vgate vLinker FS ELM327
https://pl.aliexpress.com/item/1005005065055828.html?spm=a2g0o.order_list.order_list_main.113.44591c24s9JzEI&gatewayAdapt=glo2pol
FS.PNG
I was able to connect with MES and have no problems so far.
Wish you luck :D
Dear All

What is meant by desoldering the resistor

remove the resistor leaving the circuit is open?
Or connect the two terminals after removing the resistor?

Thanks in advance

Re: FAULTY ELM 327 INTERFACES DE-MYSTIFIED (READ HERE)

Posted: 26 Jun 2025, 07:35
by s130
The resistor has to be REMOVED.

Technically the resistor is a Bus Terminator. All CAN-Bus have to have a termination of 120 ohms. However this termination is already present on the Body Computer so having two terminations kills / reduces the data signal. Hence the need to remove the terminator in the ELM interface.