P1506 Diagnostic Trouble Code Discussion for November 2008
Idle Air Control System RPM Higher Than Expected
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| Help Request | Posted | |
| 2003 Ford Taurus LX 3.0L Poor Idle Quality VIN: 1FAFP55SX3 P1506: iac overspeed error. tps voltage at idle is at 1 volt,not adjustable.desired voltage set at 1 volt through kam.maf sensor is reading almost 8 grams at idle.no vacuum leaks found with carb spray.iac will not drop below 21 % even with scanner command set at 0% |
November 20, 2008 |
