My LX Won't Rev Past 3500. What Gives?

[mechanikal]

Ok my car has been running absolutely great until today. While on the freeway I was in 5th, and all of a sudden I had severe power loss. The car runs fine while it's not in VICS, but as soon as I try to engage it; No go. It Sputters. Like I said the car was fine. but it started running like ass out of nowhere. I'm driving it as is for now, but it's kind of a bummer. I'll check my battery connections, and perhaps get a new fuel inj relay.
I'm stumped on this one, but I did notice my temperature get hotter than normal when I pulled over to the side of the road. Visual inspection on the wires and the dist checked out. I'm stuck on this one. Any Help is mad appreciated. Thanks.

[DeeAOne]

MAF taking a ****?

[underclassman]

Did the little screw back off the VAF wheel adjuster?

[mechanikal]

I don't suspect the VAF to be honest. I put in a brand new one in august. Cost me like 200 bucks. i'll inspect further in the morning just to double check. Thanks for the suggestions. Super appreciate it.

[Mazda_Powered]

turn the car off and on a few times and maybe you'll get a Check engine light out of it so you can diagnose it a bit better.

Could be coolant temp sensor or a vac leak.

[93 Pro]

Your fresh air intake hose doesn't happen to have a tear in it does it?

[mechanikal]

ok so here's what happened. Before all this went down my battery terminals were really bad. If I jiggled them it would start and such, but I was never really getting proper grounds. Got new terminals, and the problem went away. Hopefully that did it. I double checked everything you guys suggested, and didn't find a fault. Car runs good now. Thanks for your help!