So I got the charger on and everything ran fine with no codes.Then got the tune in and went to get the crankshaft relearn at the dealership and it threw up a hard engine code with the engine check light.It didnt pop up until wot for the relearn,and I never had the truck at wot until then.And the tech with the scanner said it was running 25% on the long term and 20-30% lean on the short term at idle.Those were the only two codes.The tuner said he thinks its a vacuum leak?Maybe a gasket mis-seated itself under wot,or maybe theres a leak somewhere after the MAF?But its all tighter than hell?And like I said,the light didnt come on until after the 4th time at wot.

 

What about some specs on this truck?

 

Check around the throttle body. I put the gasket on backwards once and it sucked a lot of air.