I've had my es300 for almost a year now bought used and it's always had a "stuttering" problem when accelerating. It's mostly when the engine is cold BUT sometimes does it when it's been running for a while. I've never mashed it to the floor until the other day out of curiosity. It just cut out until i took my foot off the gas. I've done research and am thinking it's the MAF. Any suggestions would be awesome. THanks

 

Is there a CEL (check engine light)?

A few years ago, I have a similar issue with my car. At first, there was no CEL. A few days later, the CEL would come on pointing to the EGR valve position sensor. I replaced it and it was perfect after.

 

See it's not on and that confuses me. Any other suggestions? Diagnostic test?

 

that is MAF meter need to replace, my car got the same problem and one day it was lost all power and died. After replace MAF meter, the car driving normal now. the part will cost you around 150 to 200 depend on the brand. good luck

 

Thanks I was debating on trying that. Guess i'll have to give it a go.

 

Could be that the previous owner messed up the timing of the engine by not aligning the timing belt correctly.

 

I'll probably check this out before anything. Thanks.

 

please see my new thread here in about 5 minutes. I will explain how I fixed my personal issue. Hope it helps!!!