part location

[shawnvic]

another problem 99 jeon 16v 2.0,while my car is in bits i want to cure another problem it has when warm my car sounds like a diesel,but increasing revs it goes have checked oil pressure and is ok.have changed and flushed oil.trying to locate activator (this sits between the cams I think and has an electrical connector and allows oil (pressure) through to operate the cam pully to give the variable timing).
anyone any ideas as to its location,thanks