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P1508 Diagnostic Trouble Code Discussion for December 2009

Idle Speed Low - IAC System Not Responding

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Trouble Ticket Help Requests for DTC P1508
Help Request Posted
2004 Hyundai Sonata 2.4L No Start, Hesitation, Cuts out VIN: KMHWF35H04
P1508: Idle Charge Actuator Signal - High Of Coil 2. Customer had been working on it long before we got our hands on it. They had changed the IAC valve and in the end left it unplugged. (I believe this is what set the codes.) They say they changed it because it was clicking and getting really hot. (I did feel it...
December 28, 2009