ok I have to replace the #3 injector, so can I just remove the throttle body or do I to remove it all to get the injector out, and if just the throttle body is the fuel rail flexable with out damaging it, I've read where one just remove the throttle body and another person removes the hole intake, I have a 2000 3.4 4 runner, I'm more of a back yard mech. and its my only auto going to work and grocery getter for the family