If you have and older 4 runner 2000 my Toyota will replace the engine ecu for free, but you will have to pay for keys and programing. On this model year, if you lost all of the master keys you have to replace the engine ecu, beause you cant add key if you only have a vallet key.
The 2012 Toyota 4Runner has a V6 engine.
The 2003 Toyota 4Runner has a V6 engine.
The 2005 Toyota 4Runner has a V6 engine.
The 2014 Toyota 4Runner has a V6 engine.
The 2011 Toyota 4Runner has a V6 engine.
The 2002 Toyota 4Runner has a V6 engine.
The 2013 Toyota 4Runner has a V6 engine.
The 2004 Toyota 4Runner has a V6 engine.
The 2009 Toyota 4Runner has a V6 engine.
The 2008 Toyota 4Runner has a V6 engine.
The 2007 Toyota 4Runner has a V6 engine.
The 2006 Toyota 4Runner has a V6 engine.