Old number 2006243 5WK97344B = 2293964 =SNS0344E (01/17 - 21/19) 2236406 = SNS0344D (All other dates) Old number 2006245 5WK96661D/F = 2293965 = SNS0061G (01/17 - 21/19) 2236408 = SNS0061F (All other dates) 01/17 - 21/19 = FIT WEEK 1 2017 UP TO WEEK 21 2019 This is only applicable to Vehicles that have undergone an update from DAF/Cummins. The DAF EPC will list the new part numbers however if a 5WK97344B or 5WK96661D is fitted then they should be replaced like for like It is up to the Customer to supply the correct nox sensor and incorrect supply does not carry any warranty
1705244/5273338 DAF EMITEC PUMP Please be advised of the following to prevent premature failure: Ensure injector nozzle 1703574/4999800 is free from any blockage and fit new if necessary. Fit new moisture separator filter 2120279/1686587/4931691. Any restriction or blockage will cause the pump to shut down automatically and this may also be caused by a blocked gauze filter which is inserted in the inlet connector. It is recommended to remove the connector and flush with warm water to dissolve any crystallised ad blue and refit. If replacing a Grundfos pump with an Emitec there may be initial communication problems with the vehicle ECM. If this occurs an update is required from a Cummins approved dealer. N.B Many buses are still running with the Grundfos pumps and are particularly susceptible to communication when replacing with the Emitec, however this is an exception rather than the rule.
Recently we introduced a Warranty Return Form in order to better understand any patterns or particular issues Customers may be experiencing. We pride ourselves on the products but also on the warranty procedure whereby, contrary to Industry standards, all returns are tested and reported within two days of receipt. We have a comprehensive array of test equipment both for NOx Sensors and DEF Pumps and whilst we understand that Customers wish to know more about how we test, we are reluctant to elaborate too much on the process for fear of competitors using it to their advantage. We have confidence in our products however we recommend that Customers gain some knowledge and a general understanding of their role and purpose. There are more than 30,000 parts on the average truck, all of which rely on other components or processes to function correctly, either electronically or mechanically. The NOx Sensor measures Nitrogen Oxide, decompresses NOx and registers the resulting Oxygen and sends the signal to the vehicle’s ECM via CAN-bus network. The ECM then makes the appropriate decisions regarding DEF injection. The NOx sensor also has two heat cycles, the first being to eliminate any moisture on the probe during ignition sequence, whilst the second maintains a constant NOx Sensor temperature. We test for both heat cycles, after which we test the Nox sensor’s ability to read and report Nitrogen Oxide (nox) and Oxygen (o2). We are also able to establish the Nox sensor’s engine running time since fitment which is stored in the sensor’s PCB. Suspect NOx sensors should be inspected for broken wires or discolouration. A black or sooty probe is evidence of excessive DPM (Disesel Particulate Matter) and could indicate a DPF issue and is possibly the biggest cause of Nox sensor failure. As a result the sensor is unable to send reliable information to the ECM. A blue probe indicates excessive heat which in turn will damage the ceramic chip within the Nox probe. This may well be caused by a faulty Turbo or EGR cooler. It is also an indication of incorrect fitment and the vehicle's ECM being unable to communicate with the sensor. Soot, excessive heat and moisture will all cause a Nox sensor to fail however the cause, quite often, is elsewhere. Fitting a replacement absolutely will cure the issue, only for it to return unless the real cause is addressed. As for DEF pumps we first test that the electrical system is working correctly. Quite often failure is caused by moisture or even DEF finding its way into the electrical connections and/or wiring. We then test the pump pressure, air solenoid, motor and that the pump is able to draw fuel in and ensure that there are no blockages, particularly in the inlet connector. We then test delivery of DEF whilst checking that no error messages are present during the test procedure. We ask that Customers complete the necessary return forms when returning goods as this could affect any warranty claims/acceptance. Any decisions regarding warranties are final as we use varying methods to test the products and to determine whether or not MD or ENPEI have supplied. There have been too many instances of mistrust regarding the validity of the warranty tests and whether the product was originally supplied by MD or ENPEI.