Ok, Heres my problem I put a 2004 LQ9 10K miles I hook all plugs back up all grounds back to block, and engine starts right up no problem runs a lil loud and high revved at start up, Figured tuning it a bit would make everything happy and run alot better so i hook up the hp tuners and find a stock silverado ss tune and figure thats gotta be a desent tune to drive the engine on till i can get some cash for a real tune, now this is when it gets wierd I start drivin around and I start throwin codes like crazy so i check the codes and they are:
P1516
P2101
P0101
And some others but these are the ones that always come up, and they always put my truck in "Reduced Engine Power" mode which makes you run like a slug who just got salt poured on him lol, So i figure it is my SSR intake with the 90mm tb with the Dr. X Harness hooked to it since most of those codes go somewhere near the throttle body so i put the tune back to completly stock to see if that fixed the problem and it didnt so i just drove it around all day today and to my amazment it stoped throwing the codes and ran decent enough lol,

OK well i get home turn off the truck leave it alone for a good 5 hours and go back out there to take it to work and it wont start now lol , I get lights in dash fuel pump engages but no action under the hood so i couldent get tio work so i hitched a ride and havent had a chance to find out if a ground fell out or if my starter just took a s**t on me lol, Any ideas would help alot cause this LQ9 is causeing me all hell lol and id rather enjoy drivin around for once and not tryin to fix everyday lol