N14 Celect vs N14 Celect Plus

Basically N14 is the model of the engine. For a brief time it was mechanical, no electronics, not sure of the time period but late 80's I guess. Then in early 90's the N14 was electronic and the first generation of electronic controls was called Celect. After a few years the second generation of electronic controls was introduced, called Celect Plus. The main difference between Celect and Celect Plus is that Plus has a J1939 datalink which is a high speed electronic data connection to other electronic devices such as automatic transmission, abs systems and vehicle navigation and so on. Celect version communicated only through an older J1708 data connections which is too slow to handle the data streams from those other devices. ESP was a feature option you could order as an add on for the multi-power rating.

 

Wasn't that the option where you could take a 400 HP engine with 1350 ft lbs torque, but in 9th and 10th gear, the torque could be 1550 or 1650 ft lbs, allowing for lower rated and lighter transmissions and rears. I know Ryder had piles of N-14 400 ESP engines at one time. It seems that explanitation is what they gave me when I askd someone there what the difference was.

 

Yes, that sounds right. There were several different ways you could program it to suit individual customer needs. You could have it load based, speed, gear, and also have tied in with driver reward as well. Never messed with it too much. Those were the good ol' days, I miss that engine!

 

Can anybody tell me if the internals (camshaft, rods, pistons, etc) in the earlier electronic CPL numbers like 1800 are the same as in the later CPLs like 2592 ? Were the cam grinds different on the low hp models like 330 hp versus the later 525 hp ratings ? Thanks in advance for any info you have.

 

You could go to a Cummins dealer and ask.

 

I made my 93 n14 Celect into a 98n14 Celect plus, the only parts that were the same was the block, crank liners and manifolds. Fan and alt. Pulleys were the same also.

 

I have an N14 Celect+, I changed the original fuel pump which is 17 years old. Upon installing the new one, I've experienced a loss of power and fuel mileage from 7.3 down to 6.7, power wise it's just become a total dog!!!

Any thoughts Guys, thanks!

 

Many a fuel pump on an N14 has been changed out and will fail early because the COOLER PLATE is restricted. They, Cummins installs a compu-check fitting on the suction side of the pump install a vacuum gage on it and see what you have anything over 6 inches of vacuum with a clean filter is a problem.
Besides all the computer changes the only sensor change is the addition of the manifold tempature sensor in the back of the intake.
If you can get a CPL book it will tell you all the hard part changes for the different CPL's.

 

Are you refering to the 90 degree fitting on the front side of the ecm cooling plate?

 

Hi I'm about to buy a volvo truck with a n14 Cummings select plus but can any body give me and idea why it does. The water inside the antifreeze tank moves? It doesn't leak it just moves around