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P0506 Diagnostic Trouble Code Discussion for January 2009

Idle Speed Low Performance

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Trouble Ticket Help Requests for DTC P0506
Help Request Posted
2008 Ford Crown Victoria Police Interceptor 4.6L Poor Idle Quality VIN: 2FAHP71VX8
P0506: IAC valve duty cycle lower than expected. ... gain some insight to a repeating issue i've seen on several Ford Crown Victoria police vehicles. This car came in w/ a very low idle and a check engine light on. DTC p0506, IAC duty cycle lower than expected. I take it this is a left over dtc from vehicles...
January 12, 2009
2004 Chevrolet Colorado LS 3.5L Poor Idle Quality, MIL Lamp on VIN: 1GCDT13604
P0506: Idle Speed Low. ... and engine started racing and would not kick down. Had check enine light on P0506 idle speed out of range. Came in about two months ago with same code,did a software update seemed to fix the problem. Can not reproduce problem in the shop. See no obvious pr...
January 17, 2009