Hi!
here is the best answer so far.
follow the link to the Lexus owners club where they have a how to complete with pics and guides.
http://us.lexusownersclub.com/forums/index.php?showtopic=29381
good luck and have fun!
93 Lexus LS400
The LEXUS and TOYOTA v-8's use the part # filter 90915-yzzd3 www.lextechautomotivellc.com
behind the oil filter
location of the ecu on 1993 Lexus LS400
take it to a muffler shop
The 1991 Lexus ls400 has a timing belt.
Where is the camshaft position sensor located on 1990 Lexus ls400?
The oil filter is located on the Drivers side front lower part of the engine. There is a plastic shield the has to be removed to access it www.lextechautomotivellc.com
LS400 fuel tank is metal.
The fuel filter is located under the vehicle in front of the drivers side tire under an aluminum sheild www.lextechautomotivellc.com
The minimum rear brake rotor thickness on a 1996 Lexus LS400 is 15mm.
I did a Google search and the 1994 Lexus LS400 has a ( 22.5 U.S. gallon ) gas tank