GURUs needed!

Okay I finally got my car diagnosed. I procrastinated a while on getting my ECU scanned because I didn't want to put down the $160 for just a scan. Then I found a guy around my area that scanned the ECU for $30. Which was great. So if you're in the Queens/BK area, I'll recommend you to him if you want.

4 CODES came out.

1) 140 Activation map cooling.
- This I dont know what it means. Does anyone have experience in this.

2) 113 Signal, Camshalf position Sensor bank 1
- Will be replacing the sensors this week.

Now these 2 last codes I couldn't figure out.

3) 028 Additive mixture adaptation, bank 1, control limit reached

4) 029 Additive mixture adaptation, bank 2, control limit reached.

Can someone with experience with these codes enlighten me what they are and what you did you fix it.

I just want to make sure that if I do bring it to the mechanic, I know what the issue is before they do. I like to know what's going on with my truck before someone else does.

Thank you ladies and gents.

- England