My '09 has problems
+ Reply to Thread
Results 1 to 6 of 6

This is a discussion on My '09 has problems within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; My '09 lately I've Noticed after I start it up it is idling at around 1500-2000 RPM's. It eventually goes ...

  1. #1
    Registered User vascoobie's Avatar
    Join Date
    Jun 2009
    Location
    Virginia Beach
    Posts
    43

    My '09 has problems

    My '09 lately I've Noticed after I start it up it is idling at around 1500-2000 RPM's. It eventually goes back down after a minute or two to where its supposed to be (500 rpm's). the only thing ive done to the car was install a CAI but it ran fine and idled ok after that now all of a sudden its doing this everytime i start it up. Anyone know whats the problem?

  2. Remove Advertisements
    ClubWRX.net
    Advertisements
     

  3. #2
    The Default One SeattleJeremy's Avatar
    Join Date
    Jul 2004
    Location
    Seattle, WA
    Posts
    4,488
    What brand of CAI did you install?

  4. #3
    Registered User binjoau's Avatar
    Join Date
    Feb 2009
    Posts
    776
    This is the car re-learning the fueling and ignition timing required for your driving style with the intake on.

    The ecu is able to learn your driving style, sounds ridiculous but I had the exact same thing on my 09 and the dealer said it would dissapear with time as the ecu became acustomed to my mods. It is now fine (after 3 weeks) and is driving great.
    09 WRX Premium: AP, Perrin Stage 2, Perrin Intake, Perrin SS, Perrin TBE, BC Racing Coilovers
    Pioneer and JL Audio C2, W3, G6600 Stink eye Mob #24
    08+ Owners Gallery, add yours!!!

  5. #4
    Registered User 06WRXturbo's Avatar
    Join Date
    Nov 2006
    Location
    VA
    Posts
    353
    It's normal for 1500-1700 rpm at cold start. Mine idles at 1500rpm when cold at first. Catalytic converters don't work unless they are hot. The faster than normal cold idle heats the cats up to keep emissions to a minimum. Not the only reason they do that i'm sure. Oiling may be another reason. Does it still do it if you shut the hot motor down, and then start it right back up? It shouldn't.

    Ask to start any subaru on the dealer lot and they will do the same thing. The PZEV models are worse. They sound like they are going to come apart for the first 30 sec or so.

    P.S. if you don't like the high idle at cold start, just blip the throttle and it should kick down a little. I don't mind it. The oil pump is driven off the crank so I want that pump spinning at cold start.
    Last edited by 06WRXturbo; 07-18-2009 at 12:01 PM.

  6. #5
    Registered User vascoobie's Avatar
    Join Date
    Jun 2009
    Location
    Virginia Beach
    Posts
    43
    Its a AEM CAI I installed it like 5000 miles ago it just started idling all crazy here soon

  7. #6
    Registered User EvoEatr's Avatar
    Join Date
    Aug 2008
    Location
    Kennett Square, Pennsylvania
    Posts
    1,839
    Quote Originally Posted by 06WRXturbo View Post
    It's normal for 1500-1700 rpm at cold start. Mine idles at 1500rpm when cold at first. Catalytic converters don't work unless they are hot. The faster than normal cold idle heats the cats up to keep emissions to a minimum. Not the only reason they do that i'm sure. Oiling may be another reason. Does it still do it if you shut the hot motor down, and then start it right back up? It shouldn't.

    Ask to start any subaru on the dealer lot and they will do the same thing. The PZEV models are worse. They sound like they are going to come apart for the first 30 sec or so.

    P.S. if you don't like the high idle at cold start, just blip the throttle and it should kick down a little. I don't mind it. The oil pump is driven off the crank so I want that pump spinning at cold start.
    +1 ^..Couldnt have said it better...

+ Reply to Thread

Quick Reply Quick Reply

Register Now

Please enter the name by which you would like to log-in and be known on this site.

Please enter a password for your user account. Note that passwords are case-sensitive.

Please enter a valid email address for yourself. We strongly suggest that you stay away from using aol, yahoo, msn, and hotmail accounts. Sometimes the mail server blocks the emails from our server. As a result you will not receive any notifications including the confirmation email.

Please select your insurance company (Optional)

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.


Posting Permissions

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