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Old 07-02-2005, 10:18 PM   #1
Scooby Specialist
Member#: 2956
Join Date: Nov 2000
Chapter/Region: Tri-State
Location: Jerzey
06 Sti-white Stg 2
98RS-rally blue

Default CEL Code 1507

P1507 Idle control system malfunction (fail-safe)

How do I fix this, what part needs to be replaced? Do I even have to worry about this? Cost?
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Old 07-03-2005, 06:43 AM   #2
Trust no one
Member#: 11170
Join Date: Oct 2001
Chapter/Region: Tri-State
Location: NYC
02 WRX
15 WRX/05 GTO


This code indicates that the ECU is unable to obtain the desired engine idle. The usual cause of this is a sticking or otherwise failed idle air controller. Sometimes the IAC can be successfully cleaned, if this doesn't work it may need to be replaced.
Also look for vacuum leaks and other conditions that affect the idle speed.
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Old 07-28-2005, 09:29 AM   #3
Scooby Newbie
Member#: 82547
Join Date: Mar 2005
Chapter/Region: MWSOC
Location: Kalamazoo, MI
2010 Forester

Default IAC is toasted, prolly

It's $300 bux at the dealer, dude. Try a WTB first...
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