I need help! I have a GP CAP232/ fuji43ei combo guided by a JRSPORT 6ch. After five flights the plane developed gliches when ground checked with the engine running. No gliches when the engine is off and the engine runs great form idle to full power-up. I have done the follwing things to try and fix the problem;

1) Changed out all servos, JRSPORT125MG to Hitec 5645, ST47 throttle and choke
2) Unplugged and/or by-passed all servos, switches flight and EI, extentions, y harness
3) Changed out transmitter and receiver
4) Changed spark plug
5) Replaced both flight and EI batteries
6) Shielded the sensor and spark plug cable
7) Moved the EI unit and separated the cables as much as possible
8) Moved the battery and receiver to behind the wing in the fuse
9) Moved the receiver antenna direction out the bottom from straight back to outboard of the elevator

Any recommendations? I did call the service dept and was told to shield the engine cables and move the receiver further back. I think I've done more then I should have for an engine/plane combo designed to work together. I also have a Fuji32b and GP Giant Stick combo that flys great.