Code p1400?

2003 FORD TAURUS
180,000 MILES • 6 CYL • 2WD • AUTOMATIC
Avatar
BBB86
  • MEMBER
  • 1 POST
Car runs like it's only firing 2 cylinders, replaced Diff pressure sensor, still running poorly. Any suggestions?
Nov 14, 2024 at 11:41 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
Advertisement
Avatar
STRAILER
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 54,178 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.
Nov 14, 2024 at 12:02 PM
Advertisement