Hehe yea engine codes are fun i can get into Isuzu if you want. im well versed in those too. Or how about mitsubishi? Daihatsu?
I know a lot of them. oh BTW SR20DET and RB26DETT= Nissan.
Ill lay down the most common Toyota codes for you
Start with the V8's.
4.0L V8 (SC400 GS400) 1uzfe- most overbuilt motor on earth.
4.7L (landcruiser) 2uzfe
4.3L (new Tundra, SC430, LS430 and GS430) i never rember this but imw orking on it its similar to the others tho
The common 6cyl is the 2jz which came in 4 forms, the N/A 2jzge which came in the SC300/GS300 and IS300 as well as the N/A Supra came in non vvt-i and in 1998+ gained VVT-i Then you have the 2jzgte or the twin turbo motor. aka MK4 Supra TT, Soarer 3.0L upgrade in japan and the JDM GS300.
Of course there is its cousin the 1jzgte (2.5L) tho it lost displacement it gained a lot of RPM.
then you have the endless supply of 4cyl 4age 4agze(supercharged) 3sge and 3sgte are the most common 4 bangers.