How do I fix error code P1406?
When code P1406 appears, the Exhaust Gas Recirculation (EGR) valve has failed. Cleaning the EGR valve can sometimes clear the code. It’s best to clean the valve before replacing the entire unit.
Where is the DPFE sensor located?
Locate the DPFE sensor, which is near the EGR valve, behind the upper intake manifold, between the firewall and engine. The sensor is a small square with two vacuum hoses on the bottom and a wire harness coming out from the side. The location will vary slightly from make and model.
What does P1401 code mean?
Error Code P1401 is defined as DPFE (Differential Pressure Feedback Sensor) Error. This error code is a manufacturer-specific trouble code, meaning it does not apply to all vehicles makes. Rather, it applies only to specific vehicle makes, such as Ford and Hyundai.
How do you clean an EGR valve?
Spray the EGR valve cleaner onto the carbon deposits. Remove the carbon buildup with the use of a pipe cleaning brush and dull scraper. Repeat the entire process until all of the carbon deposits have been removed. Wipe off the surface using a clean piece of cloth.
What happens when a DPFE sensor goes bad?
When a DPFE sensor begins to fail, it provides the PCM with bad/inaccurate data. This is because it is less sensitive and the PCM thinks less recirculated gas is being burned than is actually so.
What is the OBD II fault code p1406?
OBD II fault code P1406 is a manufacturer specific code that is defined by carmakers Ford, Lincoln, Mazda, Mercedes, Mercury, and Oldsmobile, as “DPFE Sensor Circuit Downstream Hose”, or sometimes as “Differential Pressure Feedback Sensor Downstream Hose off or Plugged”.
What causes the F code F code p1406?
Common causes f code P1406 could include the following-. Downstream DPFE hose is disconnected, perforated, split, cracked, or dislodged. Downstream DPFE hose is plugged, clogged, restricted, iced-up, kinked, pinched, or otherwise prevented from allowing a free flow of exhaust gas.
How much does it cost to repair a Ford p1406?
Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins. The cost to diagnose the P1406 FORD code is 1.0 hour of labor. The auto repair’s diagnosis time and labor rates vary by location, vehicle’s make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.
When to set code p1406 on EGR?
If the ambient temperature is below 320F (0oC), and the moisture in the system freezes, causing code P1406 to be set, the EGR system is disabled for the current drive cycle, but the fault is not stored although the EGR monitor continues to run.