'06 TJ 4.0L CEL Question

[Jason4x4]

My '06 TJ (4.0L) regularly pops a CEL everytime I go wheeling. Usually it goes off a couple days later and doesn't come back until I go wheeling again. This last time I went to Rausch, it came on in the middle of the day and a couple days later it went off. It stayed off for a day or two but then it came back on and I can't get it to go away. The code is "P 1053-Change in MAP reading out of limits". What does this mean and what can I do to fix it?

 

[Jason4x4]

Hmm...not a whole lot of help on this one, eh? Well I was thinking about it the other day and I pulled the sensor out of my Rock-It intake to check and see if maybe it came loose while wheeling or something and wasn't getting an accurate reading. I wasn't completely sure if that was the MAP sensor or not. Anyway, it wasn't loose, but when I pulled it out of the intake it was coated with some black oily residue. I cleaned it with a brush and reinstalled it and the CEL went off. If it comes back I'll let you guys know.