2004 2.4L Tacoma Needs A Tuneup : Help with parts selection please

Well the plugs seem to work very good before I changed the air filter...

Yesterday I installed a new air filter(FRAM CA6690 Extra Guard) as the old one was very dirty. And I'm thinking that it might restrict the flow of air and give less power.

The air filter that I had in there before was the basic Fram not the "Extra Guard". I am thinking that maybe the "Extra Guard" version might restrict the air flow more. Anyone have similar results?

I seemed to notice a loss of power going up a big hill that it seemed I could climb easier before I changed out the air filter. I'm going to have to do more testing as I noticed this going up the hill to my house at the end of my workday yesterday. I use the truck as a work truck, and won't be using it again till Monday.

 

I'm not 100% on this but did you disconnect the battery? I believe I've read in the past that after changing some things out its good to "reset" the computer by disconnecting the battery and letting it ecu "re-learn ".

I'd ask someone on here that knows more to back me up if that is correct or not.