Just ran my codes, and i'm confused now

[It's SHO Time]

I learned how to do this off of midwestsho.com, and they have a list of all the codes but some of the codes I got weren't on that list. Here's what I got:
114-IAT sensor out of range
121-Throttle Position (TP) sensor out of range
221-????
954-????
I don't know what any of these codes mean, could some one help me please.
thanks guys,
Justin

 

[luigisho]

Those last two make no sense to me. Looks like you're getting there though. You should try to run them again.

 

[It's SHO Time]

I don't know what to first 2 codes mean either. I'll go run these codes again.

thanks for the help,
Justin

 

[Mr Anonymous]

Definitely double-check you're code reading procedure. Based on the two invalid codes, the first two codes may not have been read accurately, so it wouldn't be worth trying to address them until you're 100% sure of the codes.