2010-2015 Cummins CSP and EDA update

[cindy@efilive]

For those of you who do not subscribe to our newsletter, today we posted a progress report for CSP and EDA.

Development progress, screen shots and video can be found here https://www.efilive.com/latest/cat/n...p5-eda-update/

Cheers
Cindy

[WyoFreeride]

Woohoo

Can't wait for real logging abilities.

Keep up the good work

[BigCE]

Looks really good.

One question, I was always under the understanding that the oil pressure reading in these trucks was just a simulated value and not actually true. I think it might have been H&S that originally said that. Basically I understood that the value fluctuated depending on rpm and the only thing the sensor in the motor did was tell you if you had "zero" pressure.

[GMPX]

On the 2010+ there is a Oil Pressure sensor shown on the wiring diagrams (don't know if it is just a switch or a real sensor), but I think what you mentioned is certainly correct for the earlier ECM's (2006 etc).
Certainly reviewing the logs from a 2012 the Oil Pressure tracks the RPM very close so it may be simulated, but it seemed like a logical PID to include as the ECM may trip some warnings based on this value.

[SASDakota]

So what was the theory behind adjustable pilot qty but not adjustable pilot timing?

[Mitco39]

Only can fit so many tables, cant have them all.

[SASDakota]

Mitco, You misunderstood my question.

Why adjustable qty? It references the main injection conversion table {D0508} anyways.. Make your pilot changes in there. That leaves room for pilot timing to take its place.

Yeah sure it may affect post injection by doing it that way. But I got much better results by adjusting pilot timing than I ever did with Qty on a 4th gen.

[GMPX]

Here's the problem, I originally did them with Pilot timing but it was then requested by quite a number of our Cummins beta testers that we replace pilot timing for pilot quantity. I would say 80% of them wanted quantity over timing.
Unfortunately as Mitch said, there is simply no room in the ECM to have both pilot timing and quantity switchable.

[SASDakota]

Here's the problem, I originally did them with Pilot timing but it was then requested by quite a number of our Cummins beta testers that we replace pilot timing for pilot quantity. I would say 80% of them wanted quantity over timing.

I guess I am once again in the minority...

Thanks for all the hours you guys have put into this project. Even at half those parameters it is 10x better than MCC.

[GMPX]

I'd welcome a debate on it, even if to shed light on the reasons why, but at this stage it probably won't be changed (again!). I just did as I was told