dies off of idle...
Page 1 of 2 12 LastLast
Results 1 to 15 of 23

This is a discussion on dies off of idle... within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; ok, so you know how the rpms will drop just below idle then raise back up if you, rev your ...

  1. #1
    Registered User batman's Avatar
    Join Date
    Feb 2009
    Location
    Roseburg, Or
    Posts
    87

    dies off of idle...

    ok, so you know how the rpms will drop just below idle then raise back up if you, rev your engine or something? well mine are dropping REALLY low like down to 100 ish. Sometimes even low enough that it dies, this has been happening frequently all of a sudden. Any ideas?

    oh, 2004 Sti 84k mi last oil change less than 1000 mi ago....
    "I refuse to tiptoe through life, merely to arrive safely at the end."

    "What do I have to do to get inside of you?"
    ~THE DARK KNIGHT~

  2. Remove Advertisements
    ClubWRX.net
    Advertisements
     

  3. #2
    Registered User wrx0131's Avatar
    Join Date
    Jul 2007
    Location
    Yonkers, NY
    Posts
    1,382
    Quote Originally Posted by batman View Post
    ok, so you know how the rpms will drop just below idle then raise back up if you, rev your engine or something? well mine are dropping REALLY low like down to 100 ish. Sometimes even low enough that it dies, this has been happening frequently all of a sudden. Any ideas?

    oh, 2004 Sti 84k mi last oil change less than 1000 mi ago....
    It could be:
    Dirty fuel filter
    Dirty air filter
    Faulty/dirty MAF sensor
    Leaking injectors
    Vacuum leak
    Faulty fuel pump
    Bugeye Mafia #213
    Kevin
    2002 Midnight Black Pearl WRX (Traded In!)

    2012 Ice Silver Metallic STi Sedan

  4. #3
    Registered User batman's Avatar
    Join Date
    Feb 2009
    Location
    Roseburg, Or
    Posts
    87
    thanks! Gonna run some seafoam through it this weekend and I'll check the air and fuel filter. I just checked the MAF. Thanks for the tips!
    "I refuse to tiptoe through life, merely to arrive safely at the end."

    "What do I have to do to get inside of you?"
    ~THE DARK KNIGHT~

  5. #4
    Registered User wrx0131's Avatar
    Join Date
    Jul 2007
    Location
    Yonkers, NY
    Posts
    1,382
    Quote Originally Posted by batman View Post
    thanks! Gonna run some seafoam through it this weekend and I'll check the air and fuel filter. I just checked the MAF. Thanks for the tips!
    No prob

    When I had this problem it turned out to be the fuel filter
    Bugeye Mafia #213
    Kevin
    2002 Midnight Black Pearl WRX (Traded In!)

    2012 Ice Silver Metallic STi Sedan

  6. #5
    Registered User batman's Avatar
    Join Date
    Feb 2009
    Location
    Roseburg, Or
    Posts
    87
    so I ran the seafoam through her and it didn't seem to help. Recharged the K&N and I'm pulling the throttle body and cleaning it tonight.

    It's wierd because the car seems fine when I'm driving, then I go to slow down to turn in a driveway or stop at a stoplight and it just dies when the rpms drop. And its not throwing a CEL so I can't get any codes to go off of...
    "I refuse to tiptoe through life, merely to arrive safely at the end."

    "What do I have to do to get inside of you?"
    ~THE DARK KNIGHT~

  7. #6
    Registered User
    Join Date
    Jul 2009
    Posts
    1

    Unhappy

    So i just bought a 04 WRX, and love it...except that it dies when I slow down to turn,etc after the engine gets warm. Read other posts, and I have already cleaned the injector, the AICV, checked for vacuum leaks, and all were ok. I cleaned the MAF sensor. I tried removing the MAF while it was running and it died...i did the reverse and disconnected the MAF, started the engine, and it idled @ 1k RPM. Reconnceted the MAF, and it went down to the normal 750, and then it bogged down like normal, and jumped back up to 750. It doesnt stall out everytime i slow down to turn, but about 75% of the time it does. I'm almost convinced that the MAF is malfunctioning, rather than just being completely dead, but want input before I spend 220 bucks on a sensor. There's no subaru dealership or repair shop within almost 150 miles from where I live, and I am DESPERATE!

  8. #7
    UnBanned Sinister's Avatar
    Join Date
    Nov 2006
    Location
    Denver Metro Area
    Posts
    17,628
    I Support ClubWRX
    this issue can also be caused by a lightweight flywheel or a lightened pulley.
    Kevin
    Moderator
    Sinister's Blowoff Valve FAQ
    WRX Gas Mileage FAQ
    Sinister's Progress Thread - 430whp 429wtq - Sold
    Firearms Enthusiasts Thread

    The Sheriff's Star at the bottom left corner rates a user's reputation.
    If you found a user's post to be helpful or quite the opposite, please make it known to them by clicking the Star!

  9. #8
    Moderator Donkey's Avatar
    Join Date
    Apr 2005
    Location
    Da boonies
    Posts
    6,047
    I Support ClubWRX
    /\ +1 or by having an atmospheric or 50/50 BOV incorrectly set.
    Resident Adviser @ WTF Tuning, LLC
    2002 FORESTER S
    1998 FORESTER S




  10. #9
    Registered User
    Join Date
    Jul 2009
    Location
    Central KY
    Posts
    13
    Make sure the air box cover is correctly installed. There are two tabs on the right side that should go in slots in the air box. It takes a little effort to get them in. It's easy (for me, at least) to clip the cover in place incorrectly. That's what was causing my stalling & surging idle issues.

  11. #10
    Registered User batman's Avatar
    Join Date
    Feb 2009
    Location
    Roseburg, Or
    Posts
    87
    still happening.... I can't figure it out and its pissin me off!!!

    When its just idling its fine, so I rev the engine it drops back down to 1000rpm, then drops to idle, but drops down to like 100 before coming back up to 500. Doesn't die. I'm thinking that when I'm on the brakes, its drawing enough power to pull down just enough to kill it.... or maybe I'm stupid... I dont know
    "I refuse to tiptoe through life, merely to arrive safely at the end."

    "What do I have to do to get inside of you?"
    ~THE DARK KNIGHT~

  12. #11
    Registered User
    Join Date
    Jul 2009
    Location
    Central KY
    Posts
    13
    I don't know about your model year but the MAF on my '07 is the same part as my wife's '04 Sienna. If nothing else works, you may be able to try a different MAF without buying one.

  13. #12
    Registered User EvoEatr's Avatar
    Join Date
    Aug 2008
    Location
    Kennett Square, Pennsylvania
    Posts
    1,839
    Iacv?

  14. #13
    UnBanned Sinister's Avatar
    Join Date
    Nov 2006
    Location
    Denver Metro Area
    Posts
    17,628
    I Support ClubWRX
    Quote Originally Posted by EvoEatr View Post
    Iacv?
    The 32 bit ecu's with Drive By Wire don't use an IACV... just the 16 bit Drive By Cable.

    The OP has a 2004 STi... (32bit DBW)
    Kevin
    Moderator
    Sinister's Blowoff Valve FAQ
    WRX Gas Mileage FAQ
    Sinister's Progress Thread - 430whp 429wtq - Sold
    Firearms Enthusiasts Thread

    The Sheriff's Star at the bottom left corner rates a user's reputation.
    If you found a user's post to be helpful or quite the opposite, please make it known to them by clicking the Star!

  15. #14
    Registered User EvoEatr's Avatar
    Join Date
    Aug 2008
    Location
    Kennett Square, Pennsylvania
    Posts
    1,839
    Quote Originally Posted by Sinister View Post
    The 32 bit ecu's with Drive By Wire don't use an IACV... just the 16 bit Drive By Cable.

    The OP has a 2004 STi... (32bit DBW)
    Im such a ****** idiot! I should have known that!

  16. #15
    UnBanned Sinister's Avatar
    Join Date
    Nov 2006
    Location
    Denver Metro Area
    Posts
    17,628
    I Support ClubWRX
    Quote Originally Posted by EvoEatr View Post
    Im such a ****** idiot! I should have known that!


    Didn't mean to look like a d1ck. I know you knew that! Probably missed the "STi" in the first post
    Kevin
    Moderator
    Sinister's Blowoff Valve FAQ
    WRX Gas Mileage FAQ
    Sinister's Progress Thread - 430whp 429wtq - Sold
    Firearms Enthusiasts Thread

    The Sheriff's Star at the bottom left corner rates a user's reputation.
    If you found a user's post to be helpful or quite the opposite, please make it known to them by clicking the Star!

Page 1 of 2 12 LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •