throttle pulse

[lb7blksmk]

i loaded a tune in my lb7 the other day and right at start up it through a mass air flow code. and the throttle pulses at low speed around 10 and lower. could it just be an error while loading it or does it just sound like the tune? thanks for any help.

[GMPX]

Try flashing the previous tune back in and see if the problem goes away.
If it does then you could look at the tables changed and figure out which one caused it.

[lb7blksmk]

well i went from a small tow tune to a larger tune. ive had it in before and it did the same thing but my tuner loaded it again and it stoped pulsing and i had no more codes.