P1506 Diagnostic Trouble Code Discussion for March 2011
Idle Air Control System RPM Higher Than Expected
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| Help Request | Posted | |
| 1997 Mazda 626 DX 2.0L Surge, MIL Lamp on VIN: 1YVGE22C8V P1506: Idle Air Control System RPM Higher Than Expected. Idle is too high & surges after warm up & idle control seems ineffective or shut down during warm up with P-1506 MIL, which returns almost immediately after being cleared. In park, no accessories on the idle will change consistently but randomly from 9... |
March 02, 2011 | |
| 1997 Ford Explorer XLT 4.0L Poor Idle Quality, Surge, MIL Lamp on VIN: 1FMDU32E0V P1506: Idle Air Control overspeed error. Engine idles at ~1400 RPM. Desired RPM is ~665. Commanded IAC to 0% - ~50 RPM change IAC command stays at 28.13% at idle - won't go lower TPS 1.15 volts - can not find spec in Mitchell I found a TPS chart: 0 degree .65 volts 10 degrees .97 volts and so on.. O... |
March 19, 2011 |
