P1506 Diagnostic Trouble Code Discussion for January 2005
Idle Air Control System RPM Higher Than Expected
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| Help Request | Posted | |
| 1997 Mazda 626 DX 2.0L Poor Idle Quality VIN: 1YVGE22C3V P1506: Idle Air Control System RPM Higher Than Expected. we tuned the car up with spark plugs, distributor cap & rotor, changed the timing belt. afterwards, we had very poor idle control, vehicle will surge up & down, when setting at a stoplight. the vehicle was then checked for the idle air valve, resistanc... |
January 06, 2005 | |
| 1996 Mazda 626 DX 2.0L MIL Lamp on VIN: 1YVGE22C7T P1506: Idle Air Control System RPM Higher Than Expected. ... 1996 Mazda 626 with a reocurring code P1506 (IAC overspeed error). We have been through the trouble shooting flow chart for this code a half dozen times. We'll go through the chart, find no fault, clear the code. In the range of one to ten days, the MIL wi... |
January 16, 2005 |
