Rough idle, low power, no check engine light

scan for codes even if the light isn't on ,

I have scanned for codes. I have none pending either. I got new plugs, wires, coils, fuel filter, and air filter. Cleaned the throttlebody and the egr valve tube and Maf sensor. That's about all I know to do.

Either the MAP ( manifold absolute pressure) or the MAF (mass air flow) is sensitive and needs a certain cleaner , I believe it's the maf that can be damaged from carb. cleaners ,no codes are up so without testing or real time scanning you can't tell whats going on ,you're not giving it gas you're just opening the throttle and that sensor tells the computer what you're doing , but let us know what happens .

I have a scanner that shows live data. Its a cheaper one but I don't really know what to look for. I guess I don't know what the values should be.

Could be your ECM failing. Same symptoms in my car even after I changed all the stuff you did. Finally, replacing the ECM did the trick.