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#Bosch vp 44 injection pump testing upgrade#
Also included pictures of connectors and adapters one might need to complete a good upgrade to improve performance and reliability. It is information meant to help owners ask the right questions. This is a lengthy article, if one reads all the information. I have tried to combine information from a number of sights to fill in the gaps. This injector pump was used from January of 1998 to 2002, NOTE ! Some of the 2003 year coach's where built on 2002 chassis and a smaller version was used on Diesel power cars and boats in the same time frame. I hope that if the reader needs some clarification, they will ask questions and hopefully get some good feedback enabling them to ask informed questions at service centers and Cummings customer service engineering help line. I understand that much of this information is beyond many on the Forum, but it should provide a coach owner a good source of questions. The customer will receive a 24 month warranty on the entire product, not on the subject of recondition.Regarding the VP-44 injector pump and its use in RV's. We only perform complete recondition of diesel systems! We do not deal with partial repairs leading only to the necessary commissioning of the vehicle, but not to the long-term functionality of the whole system!įor FREE-As a part of the package, we will provide you with a general assembly procedure that will help you to avoid damaging the remanufactured injection pump again. The entire process of remanufacturing the injection pumps will be done by a trained team of professionals in the field. The final dynamic testing and calibration results in a calibration protocol that demonstrates 100% functionality of the Bosch VP 30/44 injection pump. If the result of the whole process is positive, the remanufactured pump guarantees correct dosing and timing of the pre-injection at all stages of its loading. The control unit is programmed according to an algorithm that carries the computer of the authorized station and displays the values on its screen.
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Test the pump at an authorized Bosch EPS 815 station and check the pump for correctness according to the manufacturer's standards. The entire process of assembling the remanufactured pump is carried out according to strict technological procedures of the manufacturer. Furthermore, we check the residual fuel to alert the customer to the quality of the fuel and to avoid possible refueling of poor quality fuel.Ĭompleting the remanufactured pump with new and original parts directly from Bosch. Broken and damaged parts are automatically discarded and are not used when assembling the remanufactured pump. Bosch VP Injection Pump Remanufacturing Process:Ī first step in the overall process of remanufacturing Bosch injection pump VP is reading fault codes from the control unit of the pump.ĭisassembly of the pump and individual assessment of the condition of individual mechanical components. In that case, the repair then becomes in most cases unrealistic or unprofitable due to the high cost of spare parts. When refueling poor quality fuel, jamming failure of the pump may naturally occur due to ingress of dirt into the fuel system or due to lack of lubrication of the pump. Injection pump control unit (repairing the control unit is irrelevant if the mechanical part of the pump is not remanufactured) After The most common failures of Bosch VP30 and VP44 pumps: