Codes p1401 and p1409, crank no start?

2002 FORD EXPLORER
126,000 MILES • 4.0L • V6 • 4WD • AUTOMATIC
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FCERVANTES
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I have code p1401 and p1409, it will crank but will not start. I've tried disconnecting the DPFE sensor but nothing.
Aug 10, 2023 at 9:24 AM
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STRAILER
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  • 55,249 POSTS
When you turn the key on without cranking the engine over can you hear the fuel pump turn on for about 5 seconds? Also, will the engine run on starting fluid?


P1401 - Differential Pressure Feedback EGR Circuit High Voltage:
P1409 - Exhaust Gas Recirculation System Leak Detected:

If you can hear the pump and it won't run on starting fluid we need to check for spark, this video will show you how:

https://youtu.be/baq_aEWNQ0Y

And please go over this guide can well:

https://www.2carpros.com/articles/car-not-running-advanced

Please go over these guides and get back to us.

Aug 11, 2023 at 3:50 AM
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FCERVANTES
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  • 2 POSTS
It has spark and fuel.
Aug 11, 2023 at 1:30 PM
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STRAILER
  • ✓Experienced Mechanic
  • 55,249 POSTS
How does it sound when the engine is cranking over? We should do a compression test to make sure the engine is not hurt internally.

Please go over this guide:

https://www.2carpros.com/articles/how-to-test-engine-compression

Please go over this guide and get back to us.

Aug 12, 2023 at 3:05 AM
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