1.9 ATD/BEW and 1.9 BRM camshafts are not interchangeable. Injector cam lobes have entirely different injection curve. if 038109101R (ATD/BEW) cam is used in place of 038109101AH, (BRM) in addition to noticeable lack of power, damage to other components such as pistons is probable. If you are replacing the camshafts in either engine because of wear, the oil pan must be removed and the oil pump pick-up should be checked for obstructions.