SPONSORED LINKS

Near stall on deceleration

Tiny
JHOWE602
  • MEMBER
  • 2016 SUBARU WRX
  • 2.0L
  • 4 CYL
  • 4WD
  • MANUAL
  • 62,000 MILES
My vehicle has developed an issue where, once it is completely up to operating temperature, when I'm decelerating and coming to a stop it nearly stalls out but catches itself at the last second. When this happens, the idle peaks to around 1,200 RPMs then settles to its normal 700 RPMs. I've replaced the MAF sensor, reset the ECU, and checked the clamps on the upper intake duct and the intercooler.
SPONSORED LINKS
Wednesday, June 8th, 2022 AT 6:29 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,536 POSTS
It sounds like you could have a vacuum leak, which you should check when the engine is cold. Also, if no leaks are found I would service the throttle body. These guides can help with specific information in the diagrams below:

https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge

and

https://www.2carpros.com/articles/throttle-actuator-service

Check out the diagrams (below). Let us know what happens and please upload pictures or videos of the problem.
Images (Click to make bigger)
Thumb
Thumb
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Thursday, June 9th, 2022 AT 7:10 PM

Please login or register to post a reply.

Related Engine Stall While Driving Content

Is it Safe to Drive Check Engine Light?
VIDEO
Is it Safe to Drive Check Engine Light?
Instructional repair video
Engine Stalls While Driving
GUIDE
Engine Stalls While Driving
An engine that stalls while driving and then starts back up again, either immediately or after a short time is different from an engine that just wont start or if the...
VIEW MORE

Sponsored links