Rebuild 2.7 3RZ-FE

Hello, my Toyota engine have a fail, only work 3 of the 4 cilinders, but u haven't info about the engine, somebody have some info about how rebuild the engine.

Could be the plugs or wires. Best bet is to git a factory service manual and go from there. :D

I going to buy this book, I hope helpme to rebild the engine.
http://www.joetlc.com/images/hma92076.jpg

The wires are good, and the spark plug, maybe the inyector.