We’re having an issue with the RPMs stalling out under 2000 RPM; it corrects itself but at anytime we are subject to experiencing diminished power.
we did not find an ETC (electronic throttle control) relay or fuse. Any help would be appreciate

 

Do you have any CEL codes? If you do, PULL THEM. Cutting out at 2k rpm is limp mode as I recall.
Start with the basics:
-Check/change your spark plugs
-Clean MAF sensor
-Cam and crank sensors are common to fail on these cars -> pull codes!!!

 

Could the problem be caused by the electronic throttle?