Look for cracks or tears. P0401 Causes: Ford Focus Diagnosing what is causing the P0401 code in the Focus is typically not very tricky. Posted on Oct 08, 2009 p1406 is the Delta Pressure Feedback Electrical Sensor This sensor is located in the Exhaust Gas Re circulation system. It is a black square box with an electrical connector plugged into the front. You should go to your auto parts store and pick up some sea breeze gas additive it helps clean your injectors and lubes a few other things as well as helps with any moister that may be in your tank.
If there is anything you would like to add about P0401, please feel free to add a comment below. Look for a reading between. Nothing harmful, but you'll need to swap them. . It has two air line hoses and an electrical connection. You should go to your auto parts store and pick up some sea breeze gas additive it helps clean your injectors and lubes a few other things as well as helps with any moister that may be in your tank. There is usually a metal tube from the exhaust manifold going to it,as well as one or two vacuum hoses.
That can be a mistake. The code will point to either bank 1 sensor 1; bank 1 sensor 2; bank 2 sensor 1; bank 2 sensor 2. © 2012 Rick Muscoplat Save Save. So, if you are encountering P0401 and other codes, the P0401 may be a symptom of larger problems. Alternatively, it can become bent or kinked.
There's a differential in the pressure, one tube has more pressure than the other one. If your car is running like crap, try this first. These sensors should not be interchanged - further, some sensors… On the 4. I decided to let them have a go at it bcause the have some more specialized meters that could pin point it a little better then me. There's probably not a problem with the engine at all just the faulty sensor light problem most likely. Jul 07, 2010 Not sure what your diagnosis was but usually it is not the valve that goes bad.
Check your repair manual for exact location and a detailed diagram. I have a 2003 tauras as well,Ipluged in a metering tool for the brain box. Mine was located on the left side of the engine facing the engine with the hood up above the valve cover. As it turned out it was my pcv valve an hose was cracked and i was getting a vaccume leak. I hope that helped ya and dont forget to have your fuel filter replaced.
Have your vehicle scanned for any trouble codes in order to diagnose and repair the problem. If the hoses are too contaminated, remove them and clean them out. This is especially true if you are experiencing P0401 right after doing some engine work. I decided to let them have a go at it bcause the have some more specialized meters that could pin point it a little better then me. It has to also, direct exhaust gas into the intake,so there is your key. Shown: a vacuum line splitter with caps on it.
In some extreme cases, you may notice a slight ping or knock. Oftentimes, the larger hose will filled with a white-looking powder caused from moisture. There are two lines going to it and an electrical connector. This introduction of exhaust gases helps prevent pre-ignition by cooling the combustion temperatures, and it helps reduce emissions. You may need a shop to take a look at the system. Open the hood of the vehicle.
Yours may not look exactly like the one in this photo, though. I have a 2003 tauras as well,Ipluged in a metering tool for the brain box. They will be coated with black soot. In fact, the valve itself is usually the most reliable component in the system. However, in order to make the engine run smoothly car makers have to meter the recirculated exhaust, injecting it into the intake manifold only under the proper conditions. As soon as you open the hood you will see it in front of you. The vacuum pulls up on the diaphragm, lifting the pintle off the pintle seat.
I sprayed some carb cleaner around that area and it started to idle a little faster so i new iwas at least close. We here at Auto Parts Warehouse want to make sure you're happy with your car part purchases. I didn't find a location for the part on Autozone. Please take all safety precautions. Turn the ignition key to the On position without starting the engine---just make sure that the lights on the instrument panel are on.
Clean the pintle, pintle seat, and passages with carb or throttle body cleaner. We're here to help with whateveve questions or concerns. I sprayed some carb cleaner around that area and it started to idle a little faster so i new iwas at least close. The two rubber hoses go down. When the hoses are removed, inspect them for contamination. Let me know if you need more info.