P1506 Diagnostic Trouble Code Discussion for November 2004
Idle Air Control System RPM Higher Than Expected
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| Help Request | Posted | |
| 1997 Mercury Mystique GS 2.0L Poor Idle Quality, Surge, Stall, MIL Lamp on VIN: 1MELM6536V P1506: iac overspeed. after codes erased, only lean code returned once. idle is erratic and surges, sometimes stalls, worse with defrost ac on. Cannot find throttle body plate position adjustment as someone has been there before, also maf wiring has been cut and plug replaced. Vehi... |
November 16, 2004 |
