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Engine Idle Speed Control: Emissions Impact?
Posted to Emissions Forum on 12/7/2013 15 Replies

Hello EmFers,

I am writing because I have always wondered why there are emissions related DTCs for idle speed malfunctions:

P0505 Idle Control System Malfunction

P0506 Idle Control System RPM Lower Than Expected

P0507 Idle Control System RPM Higher Tha... Login to read more.

15 Replies Received (View Replies)