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#441857 Apr 13, 3:38pm
Joined: Feb 2003
Posts: 271
Member
Member
Joined: Feb 2003
Posts: 271
i just recently purchased an OBD2 reader and the code popped out p0505, idle control system malfunction... how do i fix this problem ?

Joined: Nov 2004
Posts: 319
Member
2002 Toyota Celica
Member
2002 Toyota Celica
Joined: Nov 2004
Posts: 319
not 100% sure, but I'd check your IAC valve and sensors related to engine idle.. the OBD is meant to give you an idea of what's wrong, but can't really tell you the real problem without further investigation. maybe try cleaning your throttle body?

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2000 Toyota Celica GTS
Massachusetts

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