What does P1401 mean?
OBD II fault code P1401 is a manufacturer specific code that is defined by carmakers Ford, Lincoln, Mazda, and Mercury as “DPFE Circuit High Input”, or sometimes as “Differential [aka Delta] Pressure Feedback EGR (DPFE) sensor circuit high voltage detected”.
What is the DPFE sensor Ford?
DPFE (Differential Pressure Feedback Electronic) Sensors are an integral part of the EGR (Exhaust Gas Recirculation) System. The DPFE Sensor provides information to the Powertrain Control Module (PCM) to tell it how much exhaust gas is flowing through the system.
How do I fix code P1401?
The rough idle is caused by improper exhaust gas regulation – either too much or too little exhaust is being recirculated back into the cylinders, and this is interuppting proper combustion. The recommended repair for a P1401 code is to replace the DPFE sensor with a new one.
How do I know if my DPFE sensor is bad?
A faulty DPFE sensor can cause several problems:
- increased emissions.
- rough idle.
- decreased engine power.
- decreased fuel efficiency.
- failed emissions.
- check engine light on.
What happens when a DPFE sensor goes bad?
When the DPFE sensor fails, it leads to poor engine performance and reduced fuel economy. The Check Engine Light might also come on the dash and your vehicle could fail an emissions test.
What is P1400 code?
DTC P1400: Cold Start Emission Reduction Control System. Circuit/System Description. The catalytic converter must be warmed to efficiently reduce the emissions. The cold start strategy is to reduce the amount of time it takes to warm the catalytic converter.
Can I drive with a bad DPFE sensor?
You shouldn’t drive with a faulty DPFE sensor. If you are noticing a rough idle or a lack of engine power, it’s best to replace the DPFE sensor and EGR valve. Leaving the car with a faulty EGR system only causes trouble passing emissions tests and leads to further air pollution.
How do I fix error code P1400?
If the actual exhaust energy model does not match the expected exhaust energy model the PCM will set a P1400 Chevrolet trouble code. In late model vehicles with an electronic throttle body, you should remove the throttle body and perform a complete cleaning of the throttle body bore and throttle plate.
What does the p1400 Ford code mean?
| What is P1400 FORD code meaning? The purpose of the Exhaust Gas Recirculation (EGR) system on your engine is to limit oxides of nitrogen (NOx) emissions. This is done by redirecting small amounts of exhaust gas back through the upper intake to get mixed in with the air/fuel charge.
What is the difficulty level of the p1400 repair?
Repair Difficulty Level: 2/3 What is this? What does this mean? | How is the P1400 code repair? Start by checking the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
How do I check for a p1400 code on my battery?
Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins. The cost to diagnose the P1400 code is 1.0 hour of labor.