Code P1400 Manifold Differential Pressure Sensor

Hello,

Yes, the manifold differential pressure and manifold absolute pressure is the same component for this vehicle.
As you know there are a number of reasons why this code will get triggered. The best course of action would be to take a look at different possibilities.
I have attached the troubleshooting steps for the code P1400 below.
Follow those steps as it can help you determine the issue.

Let me know what you find or if you have any questions.

Thank you.

Hi,

They are two different things. The MAP sensor provides a reading based on 0 pressure. On the other hand, the differential pressure sensor measures pressures at two different points in a system.

A differential pressure sensor is commonly used on a turbocharged engine. In this case, it isn't.

If you look below, I provided the directions/diagnostics for the code you have. Take a look through it and let me know if it helps or if you have questions.

Let me know.

Joe

See pics below.

My apologies for the slow reply to this. This turned out to simply be a broken clip on the connector for the MDP sensor. So this was simply a hacky fix using a few zip ties to lock the MDP sensor in place. I've had to do this with several sensors at this point as the plastic in the connectors has gotten stiff and brittle and has broken in many cases. Thanks for all the helpful information on MDP sensor diagnosis.

Hi,

Thank you for the update. First, I'm glad to know you found the problem and were able to resolve the issue. Also, I'm happy to hear it was an easy fix.

Regardless, take care of yourself, and feel free to come back anytime in the future. You are always welcome.

Joe