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Old 02-11-2013, 10:10 PM   #1
stsdude2
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Join Date: Jan 2012
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Location: Massachusetts
Vehicle:
2008 wrx
silver

Default Car idle bogs down when coming to a stop.

6/10 times when I come to a stop or I'm in stop and go traffic my idle bogs down to like 500 rpm or less and goes back up. It also bounces between like 750 and 1100 when warming up when it's like a quarter of the way there. And the last weird issue is sometimes when I'm in stop and go traffic and I put the clutch in and hit the brakes, the rpm sticks at like 2k n slowly goes down.

This car has every bolt on and the engine is brand new, 2011 sti block, Cobb pro tuned.

I don't know if I am having a tune issue or if something else is going on with the car.
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Old 02-12-2013, 07:28 AM   #2
marcymarc
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SWP

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my 2012 does this stock.. i figured it was just the crappy stock tune on it?!?
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Old 02-12-2013, 05:33 PM   #3
stsdude2
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Anyone know anything? I already checked my intake manifold gaskets for leaks and found nothing.
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Old 02-12-2013, 05:33 PM   #4
guroove
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Obsidian Black Pearl

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Have your tuner raise the idle by 50 to 100 rpms. Problem solved!
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Old 02-12-2013, 05:40 PM   #5
stsdude2
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It doesn't solve it if it keeps bogging down to like 500rpm. It shouldn't even do it. It's been adjusted before
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Old 02-12-2013, 05:56 PM   #6
nmlittlebigman
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WRB Stage II T.P. tuned

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delete

Last edited by nmlittlebigman; 02-12-2013 at 09:23 PM. Reason: noticed he said new motor
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Old 02-12-2013, 06:00 PM   #7
guroove
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Check alternator output, battery, grounds, etc. A lot of things can cause this actually.
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Old 02-12-2013, 08:35 PM   #8
dave07
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Quote:
Originally Posted by guroove View Post
Have your tuner raise the idle by 50 to 100 rpms. Problem solved!
This. There is an option on the Cobb AP that you can bump up the idle RPMs. I did this and problem solved!
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Old 02-12-2013, 09:11 PM   #9
scoobasaurusrex
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93oct vf43 ewg

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Quote:
Originally Posted by guroove View Post
Check alternator output, battery, grounds, etc. A lot of things can cause this actually.
This. When I got my car, turning the lights on and off, the AC, the radio, etc. would all make the car bog and want to die. PO mangled the wiring on the gaugest that were in the car and it screwed everything up
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