It seems to me that since there are so many Vacuum leaks that occur in M54 engines, someone has a kit that contains some or all of the rubber and plastic tubes including the large ones in the rear of the intake. My car will not start anymore ever since I found the cracked tube just aft of the MAF. I fixed the hole but that did not fix the problem. Must be another. Vacuum experience anyone? Car is a 2004 but only has 22000.