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P0506 Diagnostic Trouble Code Discussion for December 2007

Idle Speed Low Performance

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Trouble Ticket Help Requests for DTC P0506
Help Request Posted
2004 Mercury Mountaineer 4.0L Poor Idle Quality, Hesitation, MIL Lamp on VIN: 4M2ZU86K84
P0506: idle control system rpm below expected. greetings to all! this car is running rough and is not idling properly. i looked for vaccum leaks and none found. checked charge system and all checked ok. checked fuel pressure, pressure is within specs (70psi). replaced mass sensor and problems remains. do a...
December 04, 2007