[richdavison34]

Hey everyone!
Glad I found my way here. I’ve been having an issue where my car will stutter under throttle. I’ve included a video link, just make sure the sound is up.
2004 3, 2.3 L. Stock. New MAF (Denso), new plugs, and new purge valve. No check engine lights. I’ve got new o2 sensors coming in the mail. Not sure what’s causing the issue.
Thanks!!

 

[Akmnhg5A]

What is the yellow message over in the right side?

 

[richdavison34]

What is the yellow message over in the right side?

Cruise control

 

[Akmnhg5A]

I watched it a few times with headphones and sound up. Can't really hear what you are focusing on. But, if you have no codes and some funkiness accelerating, often times there is an air leak somewhere post MAF.

 

[richdavison34]

I watched it a few times with headphones and sound up. Can't really hear what you are focusing on. But, if you have no codes and some funkiness accelerating, often times there is an air leak somewhere post MAF.

Yeah, it's a little more noticeable after the gear change in the video (between 8 & 12 sec). It's like a wah wah wah wah noise where the engine feels like it's choking. You can clearly feel the loss of power.

Thanks for the info. How do you recommend I check for leaks post-MAF? I tried spraying some carb cleaner around the intake and throttle body but didn't detect any leaks.

 

[richdavison34]

I watched it a few times with headphones and sound up. Can't really hear what you are focusing on. But, if you have no codes and some funkiness accelerating, often times there is an air leak somewhere post MAF.

What's weird is it will run pretty good after you disconnect the battery and re-connect it. Then eventually this issue will come back.