Ford's answers to the NHTSA 6.7 Investigation
There was a request for a link to Ford's answer's to the NHTSA investigation posted on a previous thread, since closed. Here is the link: Ford's NHTSA Answers to the 6.7 investigation This PDF i...
Forum Discussion
Whether the issue is in other Bosch CP 4 pump applications is a big question.
Cummins is using Scania technology in the higher end lines, only using Bosch in the low end 6.7
Cummins is using Scania technology in the higher end lines, only using Bosch in the low end 6.7
Cummins Fuel Systems wrote:
High Pressure Injection (HPI) Systems
The Heavy Duty HPI (HD HPI) system is an electronically controlled unit injection system currently used on the Cummins Inc. ISX 15 liter and Scania 12 liter products. This open nozzle system provides higher pressure injection than previously released Cummins systems.
Similar to the Heavy Duty model, the High Horse Power HPI (HHP HPI) system is an electronically controlled unit injection system.In order to meet a variety of customer needs, the HHP HPI system can be utilized in multiple engine cylinder configurations. This system is used on Cummins Inc. high horse power engines ranging from 6 cylinder/19 liter to 18 cylinder/78 liter.
Ø Cummins Common Rail (CCR) Pump
The common rail injection system is used in engine applications previously supported by pump-line-nozzle (PLN) fuel systems in midrange and smaller diesel engines.The Cummins Common Rail fuel pump offers higher injection pressure and requires less power to operate, resulting in improved fuel economy and emissions compared to competitors'fuel systems. The CCR pump is used on Cummins Inc. ISL 9 liter and ISC 8 liter engines.
Ø Extreme Pressure Injection (XPI) System
The XPI system is the most recently released Cummins Inc. fuel system product. XPI is a jointly developed and manufactured system with a Joint Venture between Cummins Inc. and Scania. This common rail system provides the highest injection pressure of any other common rail system. Primarily targeted for Cummins midrange and Scania heavy duty applications, the XPI system is the result of Cummins market leading technology.
