I have 2003 twin 200HP HPDI motors on my 2003 Pursuit 2670 and I am having a switch trim/tilt issue. Last season the starboard engine would trim slower than the port engine using the conbined trim switch on the top of the throttle handle. Then the switch on top of the throttle stopped working for the starboard engine completely. The switch on the motor as well as the switch on the throttle housing both still work fine, you just can not trim both engines together off one switch. I am being told by my machanic that he needs to replace the wiring all the way back to the engines!! Help Please, can it be this extensive??