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P0505 Diagnostic Trouble Code Discussion for November 2009

Idle Air Control Motor Circuit Malfunction

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Trouble Ticket Help Requests for DTC P0505
Help Request Posted
2003 Mazda MPV LS 3.0L Poor Idle Quality, MIL Lamp on VIN: JM3LW28A63
P0505: Idle Air Valve Circuit Malfunction (Self Test). Hey everyone, I've been working on an 03 mpv with a barely noticable unstable idle. The problem seems worse at times and better at others. There is a cylinder 1 misfire code and a idle system malfunction code. After erasing the codes the misfire code came back...
November 10, 2009