Hello. Wanted to know if someone has already converted a 1.9L TDI engine with engine identification letter 1Z from a 1994 year into a 1993 year of construction. More precisely, I am talking about air volume meters, air filter box, turbo, control unit, transmission. Who knows the motors are for different things. Can I just convert this? How about with the above mentioned parts, especially air quantity meters, air filter box and control unit. Are they simply taken over by the 1994 engine? Is it in the car or should I/should I take it from the donor? Maybe someone can tell me any changes between the years of construction (engine/gear). Changes: Engine character letter 1Z Torque increase: BJ 93: 182NM BJ 94: 202NM Turbo: BJ 93: 2100 U/min. BJ 94: 1900 U/min. LMM: BJ 93: Air flow meter BJ 94: Air mass meter transmission?