I have a 97 S10 with 4.3 and it seems to stumble and jerk a little bit after coming to a complete stop and accelerating. Most of the time it does this is when i start it up to go somewhere in reverse it does it and in drive. I have an obd2 scan tool with live data analysis and my tps at idle reads 0% and when i push down the accelerator to 3000rpms it only shows about 7% throttle. Do i need to replace the tps? No engine light is on.

 

Any ideas are welcome