Bike interface OBD

ivashkoartem:
I have z1000 my2012 from USA, in this ECU there is no immobilizer and there is no sensor lambda.

I cannot connect to the ECU via the k-line bus. I use k-line, GND and + 12V from the diagnostic socket. No connection even when using ELM327 and Torque app, but with another z1000 my2017 motorcycle the connection is ok.

Before that I used arduino to connect and the result was negative.

Can you tell me what idea to make a connection?

Almost 110% of all ELM327 adapters are chinese clones and do not support proper programming (like setting the custom header, keepalive-message or initialization), nor do they support the K-Line properly.

My personal rule of thumb is: Below 50 bucks (€ or $) it´s a clone and will not work with motorbikes.
Purchasing a L9637D, some resitors and stuff will cost you 5 bucks and you will find out!

PS: My 2012 Z750r has the immobilizer but no lambda as well.