Surging during light to moderate acceleration

I and others are having a surging/pulsing on light acceleration in my 2021 Rav4. Feels like a bucking sometimes. Give it harder throttle it goes away. Dealer was worthless-said it's normal. No codes. Maybe related.

 

Might be, though I think this might've been more prominent on 2nd tundra fuel pumps and/or flex fuel models.

On my search, those symptoms seem to be a common enough occurrence across the board but for different reasons depending on the truck's gen.

Looks like there's a TSB out for 3rd Gen trucks now with similar (not identical though) issues that I believe may be more related to what you're seeing in your Rav than I experience with my tunny.

 

Interesting. Would you know what that TSB number for the 3rd gen is?

 

I have a 2008 TRD with 100,000 miles. I have owned it since new. I recently experienced this problem and looked to this site for help. I replaced the fuel pump, cleaned the throttle body, replaced the torque converter and a couple other items. Still the same annoying surging. No codes or engine lights. Finally got a check engine and was able to figure out the problem. My Bank 1 VVT solenoid. Replaced this and it fixed the problem. I assume they were going out which was causing the problem but not bad enough to throw a code. I wanted to post this in case someone else is still chasing the ghost.