do you know if the new 6.7 run with "piezo injector" or still selenoid controled?? the injection pressure had been rised from 23200 to 26000 lbs on the 6.7...the newest generation of pump are "cp4" now....cummins put cp3 on the 5.9...but on the 6.7??

 

still solenoid injectors and gear driven Bosch 2 stage fuel pump variant (3.1, 4, whatever you want to call it)

 

ok thanks bigblock......

navistar on their engine have abandonned their "hui" systeme for the piezo on their new powerjoke...(6.4) don"t know about the duramax...but untill last year they where on the solenoid like the cummins...

 

All of the duramax's, including the new LMM (emmissions) still use the old solenoid injector drivers, Im 99.9% positive.

about time ford ditched HEUI