I am new to this whole thing but I have a 06 F350. I just installed an IDX air cleaner. I drove the truck about 50 miles and no problem. As soon as I hooked up the 5th wheel and started to tow I got the check engine light again (4th) time the other three I did not have the air cleaner. I have also had the turbo replaced two times. The first was at 3600 miles the second at 9000 and now the truck only has 11700 on it. I am thinking of trading for a GMC. Anyone know a permanent fix? Quality is Job 1! Right!