DieselMachine

Has anyone heard of a way to reprogram a 325/600 motor and get rid of the 3rd injection event using a tuner or programmer??

The benefits being better fuel economy right? Just a thought because all the timing and injection control is electronic so it seems like this would be possible.

Rpainter

I think marco tried it and lost power and gained egt.

torquefan

I recall one of the programming experts on here (maybe it was Qzilla) commenting that the late timing on the 325 motors contributed to poor mileage a lot more than the 3rd injection event did.

Don M

Not a good idea.

DieselMachine

Ok, just thought it might have been done or at least considered.

WUnderwood

do a search, this question comes up a lot, it is not benificial

EDR

I'm hoping the announcement that the Smarty Jr. POD program will soon be available will help out a lot to improve my fuel mileage.

The fact that it's going to be a free download is the icing on the cake!!

homewrecker

Don't the 03-04's only have 2 injection events?If so why can't the 4.5 and up run this way?

#2 only

03-04 have 3 and 04.5-07 have 5.

randallp84

Sorry #2, Homewrecker is correct. 03-04 have 2 injection events and 04.5-07 have 3.

#2 only

This is good,I'm practicing not debating!!

homewrecker

So how is it a truck like Tim Barber has(04 I think) is making 1100hp on 2 injection events and everyone says that making an 04.5 and up run on 2 will not work?Come on guys,I know someone has a technical answer.

no_6_oh_no

Either truck will make just as much power on a single injection event as they will on multiple events, they just have to be configured to run that way.

The 3rd event is not the culprit in mileage loss. Much more impact is seen from the retarded injection timing, and, cam grind and valve timing which is the reason why just removing the 3rd event does not work.

Its entirely possible to recalibrate the ECU to a single or 2 events and install a cam grind that is correct for injection timing. Its just not efficient, or legal for that matter, to do so.

homewrecker

So theoretically you could swap in a 24V cam grind and reprogram the ecm to a single injection event and get the rattle back in a CR?

no_6_oh_no

It wouldn't sound eactly like the 24V but it would be closer. The engine redesign for the CR's also had some things in it to reduce the noise and that you are stuck with.