We use cookies to make wikiHow great. Next Post . An air leak would change the sensor readings, thus resulting in the code. Avoid removing both hoses from the pressure sensor since you wont produce accurate results. Consult OEM factory service information for the exact vehicle specs if needed. Operating conditions: The engine spends too much time on light load conditions, causing insufficient DPF temperatures which prevent passive regeneration to take place. 6 0 obj Ended up finding a lot more information I wanted to learn. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. Replace your DPF sensor, that failing sensor will cause failed regens and will also keep kicking it into limp mode. One sensor that keeps an Eagle Eye on the condition of the DPF is the Differential Pressure Sensor.How can we test this sensor and how can we be sure that the ECU is processing what it sees? You can buy vacuum pumps online or from auto part stores. The operation of the Exhaust Gas Recirculation (EGR) valve will be disabled. This step will only work if you use Cummins Insite (version 8.5.2 or later) or an equivalent diagnostic tool which supports the test described below. In the most extreme cases, a DPF failing can create an environment where the exhaust gas can not be fully purged. During passive regeneration, soot is burned-off from the inlet of the filter and extend its service life. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. In this manner, the sensor is able to determine the pressure difference across the DPF, which serves as the primary input data the PCM uses to determine the soot load, and therefore, the efficiency of the DPF. wikiHow is where trusted research and expert knowledge come together. Replace the sensor. However, it is usually mounted on the aftertreatment assembly with a heat shield to protect it from heat or in the engine compartment again to protect it from the heat generated by the diesel emissions system. Categories . Find many great new & used options and get the best deals for Replacement Pressure Sensor DPF Black Differential For Cummins Plastic at the best online prices at eBay! I'd strongly suggest getting either an "OBDLink" cable or Bluetooth device rather than trying to use an ELM327 device to connect Multiecuscan to your van, MES seems to have no end of issues with the cheap ELM units. Monitor the temperature readings of the following sensors: The MAXIMUM difference between the sensor readings should be 24oC (43oF). If you want to check the sensor while its still attached to your vehicle, use a multimeter and vacuum pump to test the pressure and voltage readings. Hunter holds a BFA in Entertainment Design from the University of Wisconsin - Stout and a Minor in English Writing. The cost to replace a DPFE sensor and EGR valve range from $150 to $500. Typically, the ground port is the leftmost or rightmost prong but it may vary depending on the sensor you have. But opting out of some of these cookies may affect your browsing experience. Your exhaust gas flow at idle is not very restricted by your DPF even when mostly clogged. The range 0V0.2V is reserved for a diagnosis signal. So if the front hose reads 1 PSI and the rear hose reads half PSI, the signal wire voltage should read somewhere around .8 volts. This website uses cookies to improve your experience while you navigate through the website. If the sensor values on step 5 meet specifications, it is necessary to check the sensor voltage readings further. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. If you are wanting to be a little more accurate you can use an exhaust backpressure gauge that measures between 0-15 PSI. $69.00. Some posts may contain affiliate links. Cummins Dpf Differential Pressure Sensor Reading If you are working in a diesel engine, then you know how important it is for the engine to have a good diesel particulate filter. This DTC is a two trip fault. Industrial differential sensors may be integrated into a standardised fitting, allowing it to be built into existing pipework. National Truck Parts has a large selection DPF and emissions products for heavy duty trucks. For a better experience, please enable JavaScript in your browser before proceeding. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. JavaScript is disabled. New OEM Genuine Cummins Temperature Sensor 4954574. %PDF-1.3 Spare Mini in my closet. Since soot is abrasive, when it is mixed with oil, will cause premature wear to the engine components like the bearings. endobj I had issues with mine so. endobj The 452A code is an information code only for BMW service to advise the customer that the DPF is approaching it's calculated end of life and they should make an appointment for a $4800 DPF replacement. Opt for a digital multimeter since they can perform multiple functions and will be easier to read while testing the sensor. P2454 Dodge Diesel Particulate Filter Pressure Sensor 'A' Circuit Low. Inspect the DPF differential pressure sensor tubes. Clean or replace as necessary. This image may not be used by other entities without the express written consent of wikiHow, Inc.
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