[Shaguar47]

Just yesterday, it has been acting funny. When ever it's cold, it's fine. But once it heats up, then the funny stuff happens. I can normally go out, after school, start it up (which is fine) and once it starts, the tach goes from 1k to 1.5k back down to 1k to 1.75k over and over till is sort of idles higher than want it's supposed to be Also, whenever i just tap the gas, the tach will go up to 2 or 3 rpm and stay for a few minutes till it starts to go up and down again. I've tryed resetting the ecu, cleaning the throttle body, and checking for stick in the throttle cables and it still does it.

Any help, because it's starting to become undrivable? Could it be the main relay by chance?