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P1507 Diagnostic Trouble Code Discussion for April 2010

Idle Control System Malfunction

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Trouble Ticket Help Requests for DTC P1507
Help Request Posted
1997 Subaru Legacy L 2.2L Poor Idle Quality, Stall, MIL Lamp on VIN: 4S3BK4358V
P1507: Idle Control System Malfunction. ... car came into the shop at closing last night as I was closing the doors. I heard it running, it sounded like these Subarus do when you leave the air intake tube to the IAC disconnected after replacing an air filter. It wouldn't stay running without throttl...
April 02, 2010