Guys nedd help, what should be the cause of the engine revving when I depress the clutch pedal? let say when downshifting from 3rd gear, release the gas pedal then depress the clutch, the rpm goes very high. it returns to normal when you release the clutch. The whole throttle body was already clean especially the IACV-AAC valve. I also notice when the tps is disconnected, the rpm goes very high by itself. what component or parts should be suspected? my ride is GA14DNE, thanks...