impreza

hi benny. i dident swap to manual car because they almost dont exist in in our country...

hello everyone... i have an impreza 2008 hatchback 2.0L 4x4 that i converted from 4 speed AT to 5 speed manual. i solved all the mechanical adaption challenges and the car is driving... my problem is with the throttle, it doesn't open over 30% (opens 100% and immediately closes 70%) .It is actually stuck in safe mode and accelerates slowly because the AT gearbox is disconnected. i replaced the ecu with the complete lock set (ecu, body control unit, instrument panel, keys & switch) taken from the same model but with a manual gearbox. unfortunately it doesn't help and the issue remains the same, the clutch and neutral switches are also missing... my suspicion is the harnesses are different between AT & MT models. when connecting lunch diagnostic to OBD the trouble code is: P0600 serial communication link... I would appreciate any advice to solve this problem