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Chris (aka- Moose)
Chris (aka- Moose), Technician
Category: Transmissions
Satisfied Customers: 45977
Experience:  16 yrs. experience with auto, manual, & CVT drivelines
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2014 Subaru WRX engine sputters at 3500 rpm or higher when

Customer Question

2014 Subaru WRX engine sputters at 3500 rpm or higher when moderately to hard acceleration. 5 speed trans, 28000 miles, turbo equipped. No engine mods except for larger air intake kit. What could be the problem, which just happened yesterday?
Submitted: 6 months ago.
Category: Transmissions
Expert:  Chris (aka- Moose) replied 6 months ago.

Welcome, I'm Chris (aka Moose) I prefer to work when others don't, I am here around lunch and after dinner till after midnight.

Any warning lights on?

Is this occurring in each gear at this rpm?

When it sputters is it brief or continuous once it starts doing this?

Expert:  Chris (aka- Moose) replied 6 months ago.

Hello again Chris here,

  • I am following up with you to see if you got everything you needed from my answer.
  • I have not heard back from you, so I assume you were not pleased. We're you pleased with my help?
  • If you were not pleased with my help, please let me know by replying so I can help more.
  • This post is coming up on the 7 day mark where it times out. When a post times out, that means it's no longer on my active list (you reply and I may never know it.)

Thanks Chris

Customer: replied 6 months ago.
Chris, the engine will sputter around 4000 rpm in any gear, and continuously. No warning lights. Likely the turbo? Or something related? Thanks
Expert:  Chris (aka- Moose) replied 6 months ago.

The more likely caused for this are going to be the air fuel ratio not correct from an incorrect reading air fuel sensor or low fuel pressure. Have you checked those things?

This is my 1st answer, but does not have to be my only answer. You the website and myself expect you to have a ~~~5 STAR EXCELLENT~~~ experience with my help. Please let me know if you are pleased by selecting a star rating above or by replying and saying your pleased. Not rating or rating 1-2 stars does not benefit you nor me in any way. Follow up and reply as often and when needed, there is no extra charge to do so.

Thanks Moose.

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