Code P1400?

Tiny
BBB86
  • MEMBER
  • 2003 FORD TAURUS
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 180,000 MILES
Car runs like it's only firing 2 cylinders, replaced Diff pressure sensor, still running poorly. Any suggestions?
Thursday, November 14th, 2024 AT 11:41 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
So, I would check the engine compression first to see if the engine is hurt or not, you could upload a short video of the engine cranking from under the hood so I can tell what going on. I would not worry about this code right now.

P1400 - Differential Pressure Feedback Electronic (DPFE) Sensor Circuit Low Voltage Detected

We need more information to help but this will be a good start. Please go over this guide and get back to me:

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

Let us know what you find.
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Thursday, November 14th, 2024 AT 12:02 PM

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