While I had a stock engine and ECU I really strugged to find much information or tools to scan the 2JZGTE VVTi engine in my supra, standard OBDII tools did not seem to work. Some guys had tried and failed or got mixed results. I did find a guy in the UK that found out how, but it seemed one of his friends was a Toyota Mechanic and had access to an expensive scanner tool which wasn’t an option for me.
I’ve hopefully now found some basic information for the Toyota Supra 2JZGTE VVTi ECU;
-Is not OBDII compliant, it uses an JOBD compliant protocol as it’s a Japanese ECU –
-Uses a OBDII connector but requires a scan tool with correct software to read the correct protocol which is ISO 14230
It now seems like there is a cheap solution for reading the protocol; Thanks to Muzzytt on supraforums.com.au and Konrad on mkivsupra.net for sharing this information around on the forums.
- Buy a ELM327 scanner tool – ELM327 Interface Bluetooth OBD2 Auto Scanner V1.4 OBDII
- Purchase and install Torque Pro Android software – Torque Pro Google Play
- In the vehicle profile of the Torque Pro application add the following line in the VERY ADVANCED ELM327 section
- ATIB 96 \n ATIIA 13 \n ATSH8213F0 \n ATSP4 \n 0100
Now from some reading those settings mean;
- ATIB96 = Set the ISO baud rate to 9600bps
- ATIIA 13 = Set ISO (slow) Init Address to 13
- ATSH8213F0 = Set Header to 8213F0
- ATSP4 = Set protocol to 4 (ISO 14230-4 KWP (5 baud init, 10.4Kbaud))
- 0100 = Start Sending Data
I’m no expert on OBD and still would like any further information on the subject if possible relating to specifically the 2JZGTE VVTi ECU. Also this is information that other internet users have published and I also do not know the owners of the scanning tools or software, plus I have not personally tried this but lots of others have with success.