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P1506 Diagnostic Trouble Code Discussion for December 2004

Idle Air Control System RPM Higher Than Expected

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Trouble Ticket Help Requests for DTC P1506
Help Request Posted
1999 Ford Escort ZX2 Cool Coupe 2.0L Poor Idle Quality, Surge, MIL Lamp on VIN: 3FALP1131X
P1506: idle overspeed error. ... up against this 99 ZX2, VCT engine sporting a P1506 Idle overspeed error. Local lube place read codes & installed Ford PCV valve. Car then went to Ford dealer & was diagnosed as IAC & injector harness bad. Comes to me with those new parts &...
December 02, 2004