4.6 eatin gm's

i keep on getting p0101 code "mass or volume air flow circuit range/ performance. i swaped from my 5.3 to a 6.0 friday night and it keeps pulling that code. i still have the tune from the 5.3 with a o4 ls6 cam. the 6.0 is stock with shorty headers. what could this problem be?

Atomic

iTrader: (42)

is the maf plugged in?

4.6 eatin gm's

Yeah the mass air is plugged in

mhotrodscooter

iTrader: (13)

I had the same problem with my swap! All I did is clean the tb & it went away!

fredkj3

iTrader: (1)

i remember reading somewheres where some people had to drill holes in there TB to get it to stay running....id try cleaning it all first...

4.6 eatin gm's

the truck runs and drives but after aout 5 minutes the check engine light comes on. and it will still drive but u can tell the motor kinda goes into a different mode

mhotrodscooter

iTrader: (13)

Same here try & clean the tb