I have a 2005 ls6 engine,manual 6 sp in a nomad body. Stock crank,rods,pistons, 54-459-11 comp cam 280 int 289 ext 113 spread w/comp valve springs and pushrods, ls2 90mm throttle body, professional products intake manifold,headers w/exhaust, stock mass air flow,map,injectors,front o2s sensors, the rear 02s are deleted. The engine does start and run for about 2 minutes before it sets a po068 code maf/map - throttle correlation, there is no throttle response at all. I do not have a radiator in the body yet to runn longer than a few minutes. I am new to the tuner world and looking for a tune to repair the code at this time.