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P0505 Diagnostic Trouble Code Discussion for July 2008

Idle Air Control Motor Circuit Malfunction

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Trouble Ticket Help Requests for DTC P0505
Help Request Posted
2000 Honda Accord EX 2.3L No Start, Poor Idle Quality, Stall, Misfire, MIL Lamp on VIN: LHMCG6656Y
P0505: Idle Speed Control System. engine got very hot from a water pump problem.customer replaCED WATER PUMP AND TIMING BELT AND HAD PROBLEMs from over heat to misfires to rough idle to no start all intermitent I have tried checking for HC in radiater but get coolant splash back before i can g...
July 05, 2008
2006 Ford E-450 Super Duty 6.8L Stall, low idle speed VIN: 1F34MOL459
P0505: pcm can not raise rpm to do running test. ... complaint that it will stall when rear ac is turned on. i went to get it to have it start and stall right out. did that few times and then i gave it a little throttle just to keep it going and got it back to the shop where it ran ok but the idle seamed a b...
July 24, 2008
1995 Subaru Legacy L 2.2L Poor Idle Quality VIN: 4S3BK6354S
P0505: Idle air control malfunction. ... rpm for a few seconds and then starts to hunt. Customer says it started happening all of a sudden and check engine light came on. code p0505. Car runs fine otherwise. Everything pointed to the IAC valve so we replaced it but did not fix it. If we pinch the...
July 30, 2008