code p1409 - Ranger-Forums - The Ultimate Ford Ranger Resource


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Old 11-22-2010
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code p1409

Failing emissions and getting code p1409.

98 Ranger 4 cyl 2wd. Wondering what is the typical culprit for that code, or the best place to start?
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Old 11-22-2010
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p1409 is an egr vacuum regulator circuit fault
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Old 11-22-2010
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The PCM is reporting that the EGR Vacuum Regulator Solenoid voltage is outside of what's possible when the system is working correctly - either too high or too low.

There are 3 possible causes:
  • Damaged or unplugged wiring between the PCM and the EVR Solenoid
  • Bad EVR Solenoid
  • Bad PCM (Extremely unlikely)
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Old 11-22-2010
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thanks for chiming in bob i sure as hell wouldnt now where to start lol
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