Set up ELM327 to behave like FTDI - just forwarding commands without OBD init

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My first question on here so I'm not sure if that's the right forum. I've connected with my car's ECU K-Line through FTDI-OBD cable and terminal. Found it's something like KWP2000 but without preinit hassle. I just send it commands on 9600 baud, even parity, 1 bit stop and got a reply with VIN number. When I try to send same command with ELM327 it doesn't work and I believe because of ELM adding something, either initialisation of the KWP or adding some checksum or additional info and it doesn't work. I've already tried using ATSP5 ATIB96 ATBI

And it still doesn't respond eg. VIN message from sending same command. My point is to get to secret sensors data from $21 because there is a little info in regular Mode01. And I want to use ELM327 because I wanted to use Android phone to display the data.

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