When I go full throttle the RPMs stick at 3 for a little over a second before shooting up to 6 and speeding up. It's an automatic GT 125 k

 

Welcome to the forum.

Have you pulled codes yet, not all codes light the CEL on the dash.

Also, try starting a new thread in the Tech section for your year car. There's alot more members in there that can help you out.

Good luck