2JZGTE VVTi OBD Scanning and Information

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.

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2JZGTE VVTI Information

2JZ VVTi Engines

(VVTi 2JZGTE left – Japan Only, VVTi 2JZGE Right – US/UK Only – This is true for supras, other toyotas may have had these engines available in other models)

Specs:

  • The VVTi 2jzgte came in JZA80 Supra from September 1997 – July 2002
  • Max Power: 209 @ 5600 (280 hp)
  • Torque (nm) 46.0 @ 3600 (338ft/lb)
  • Injectors: 440cc
  • Injector Impedance: High Impedance
  • Stock recommended Denso plugs: PK20TR11
  • Stock recommended NGK plugs: BKR6EKPB11
  • Airflow Sensor: Hot wire type airflow meter
  • Fly by wire throttle (Still has throttle cable)
  • Traction control is built into ECU
  • ECU is OBDII based using JOBD specification/protocol (ISO 14230) but you cannot use the standard OBDII scanners to read error codes/diagnostics etc It still has a OBDII connector and can be scanned using a scanning tool and software, you can read more about this here – http://www.2jzgarage.com/2013/01/2jzgte-vvti-obd-scanning-and-information/
  • Rev Limit: 7200rpm
  • Speed cut: 180km/h

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