This article is to help out with the troubleshooting of the ETCS-i (Electronic Throttle Control System intelligence)also otherwise known as the DBW (Drive By Wire) system found on the 2JZ GE and GTE VVTi, this article is aimed at the supra but may also to apply to the JZS161 Aristo or any other ETCS-i equipped Toyota/Lexus vehicle.
There isn’t too much different between the 2JZGTE VVTi and 2JZGTE non-vvti but there are some parts that are different and things you need to check before modifying, upgrading or starting a new project. Below are some parts and vendors that are compatiable or make parts specifically for the 2JZGTE VVTi for aftermarket support.
Check out my other post regarding 2JZGTE VVTi engines for any more specifc information about the engine – http://www.2jzgarage.com/2012/02/2jzgte-vvti-information/