Problems while driving

Problem im having. I replaced the fuel filter and air filter. While im driving, feels like i lose power like no gas for less than a second then picks back up. I notice it alot more driving under 55. On highway not so much. Have no idea what it could be. When i replaced the fuel filter and cleaned the MAsensor ran awesome for 2 days. Any ideas of what could be my problem.

 

I would suspect the TPS (throttle position sensor)

 

Thanks. I well try to replace that and see what happens. My brother works in Houston at toyota dealership so gonna give this baby a good tune up. Just trying to find time from work. Thanks again well replace and let u know how it does.

 

Welcome to TW

May want to see the First gen section to see if anyone has expedienced anything similar.