MAP fluctuations
My 914 has developed MAP fluctuations at 115% throttle position. The MAP gauge fluctuates between 38.5 and 40. After the flight I put the computer on the TCU and with the engine not running and using the monitor function saw the setpoint airbox pressure was at 1370 ( full throttle) and 1500 ( idle).
In flight the airbox pressure is exceeding 1370 at WOT which may or may not be causing the wastegate to open and close. I don’t really understand how it all works and would appreciate some assistance.