Diesel engines operate at higher compression ratios than gasoline engines, and fuel is injected under much higher pressure. An injection pump, usually driven by a belt or chain linked to the ...

Read more: 15 Popular Oil Filter Brands ... While DIY replacement of the CP4 injection pump and associated fuel system components is possible, I wouldn't exactly call it friendly.

Read more: 15 Popular Oil Filter Brands, Ranked The P7100 injection pump works by compressing fuel with its rotating plungers. The injection rate and total lift of these plungers is controlled by ...