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Nissan sentra rpm problem! Help! Altima 2007 Self Diagnostic. I have been following scanner danner for about 2 and a half years now and I have his e-book. P0507 - Idle Air Control System RPM Higher Than Expected. A P0507 DTC trouble code may be caused by one or more of the following: A vacuum leak Leaking air intake after the throttle body EGR valve leaking vacuum A faulty positive crankcase ventilation (PCV) valve Damaged/failed/dirty throttle body Failed EVAP system Failed IAC (idle air controller) or faulty IAC circuit. A cool trick to save money secretAutoZone DIY Garage: Check Engine Light The Fatal Flaw of the Nissan Altima 2004 Nissan Sentra S MIL reset How to What is the cost to diagnose the P0507 2006 NISSAN SENTRA code Labor: 1. The operating of the throttle valve is varied to allow for optimum control of the engine idling speed.
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