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Any other way to eliminate it other than having to purchase a smarty? Is it possible to get someone with some type of scan tool to kill it? Everything I've read about that event seems like it's just not good:confused013:
3rd injection event
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No. And I don't think standard smarty tunes get rid of it either although I believe you have control of it with UDC. The post injection event in itself really doesn't hurt anything. Yes it's an emissions deal but even with it turned off, with the stock cam, you'll still have egr.
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The only way to kill it is reprogram the injector routines. That would take tools like Insite and the ability to write to the ECU.
Marco has stated that event has been turned off in all Smarty tunes since 2006 so a Smarty should have it off.
That event only activated when load and rpms dictated the need for power or killing the cylinder temps. It is not on 24x7 so as long as you drive relatively sanely it never activates. Just turning ti off won't gain you much of anything, there are a lot of other factors that contribute much more to efficiency, and get hurt by emissions.
Marco has stated that event has been turned off in all Smarty tunes since 2006 so a Smarty should have it off.
That event only activated when load and rpms dictated the need for power or killing the cylinder temps. It is not on 24x7 so as long as you drive relatively sanely it never activates. Just turning ti off won't gain you much of anything, there are a lot of other factors that contribute much more to efficiency, and get hurt by emissions.
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Okay! For some reason I was under the impression that it was at a constant hit.
The way I drive anymore prolly hasn't hit one time since engine install
Thanks
The way I drive anymore prolly hasn't hit one time since engine install
Thanks
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There's absolutely nothing wrong with the 3rd event, doesn't hurt a thing.
Isn't the third event the dreaded "cylinder wash" that they claim puts fuel in the oil ?
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The 3rd event is for emissions and power both. Multiple injection events are a fact of life with modern diesels, it is the way they generate the broad power bands while meeting emissions. The early 6.7's used up to 5 events and I think the later ones could have 7. Engines like the VM with Piezo can utilize up to 9 events.
More events will almost always increase wear and decrease MTBF, but, construction of the injector has progressed also so it is not as bad as you think. Fuel quality is a much bigger contributor to failure than number of events.
With the 5.9 electronics the 3rd event is more of an extension or post pilot event. EGR is intended to reduce cylinder pressures and temp that increase the generation of NOX. Given the fueling curves that is only an issue in high load higher rpm situations. The ECU is not monitoring temps so it uses engine load and rpm to decide whether that event is needed. It also extends the power band out to 2900 rpms for higher rpm operation when load does not warrant it. As rpm increases fueling increases as does timing which sets up conditions for NOX creation. You add a little more fuel to the end of one event to maintian power level and the late burn also robs some oxygen from the next event to balance temps and pressures.
That is with stock fueling, modify the fueling curves and it all goes out the window. The Smarty reportedly has turned off this event many years ago but it is extending the duration adn modifying the presurre curves so it is not real important in that repsect. Doing that is looking for efficiency not emissions so it is a different paradigm being used.
What the 3rd event, really any emissions tune, does impact is efficiency and soot loading in the oil. The idea that it doesn't "hurt" anything is ambiguous at best. It doesn't hurt the engine operation, but, it does hurt efficiency and ultimately fuel economy, it does hurt the oil in the form of more soot that leads to accelerated engine wear. However, oil compostion and engine material composition has been adjusted to compensate so the lines of what is good and bad and their effect is blurred.
More events will almost always increase wear and decrease MTBF, but, construction of the injector has progressed also so it is not as bad as you think. Fuel quality is a much bigger contributor to failure than number of events.
With the 5.9 electronics the 3rd event is more of an extension or post pilot event. EGR is intended to reduce cylinder pressures and temp that increase the generation of NOX. Given the fueling curves that is only an issue in high load higher rpm situations. The ECU is not monitoring temps so it uses engine load and rpm to decide whether that event is needed. It also extends the power band out to 2900 rpms for higher rpm operation when load does not warrant it. As rpm increases fueling increases as does timing which sets up conditions for NOX creation. You add a little more fuel to the end of one event to maintian power level and the late burn also robs some oxygen from the next event to balance temps and pressures.
That is with stock fueling, modify the fueling curves and it all goes out the window. The Smarty reportedly has turned off this event many years ago but it is extending the duration adn modifying the presurre curves so it is not real important in that repsect. Doing that is looking for efficiency not emissions so it is a different paradigm being used.
No, that event is only activating when cylinder pressures and temps are high. There is no chance, given everything is operating correctly, that that will cause fuel in the oil. It does cause more soot loading but not fuel.
What the 3rd event, really any emissions tune, does impact is efficiency and soot loading in the oil. The idea that it doesn't "hurt" anything is ambiguous at best. It doesn't hurt the engine operation, but, it does hurt efficiency and ultimately fuel economy, it does hurt the oil in the form of more soot that leads to accelerated engine wear. However, oil compostion and engine material composition has been adjusted to compensate so the lines of what is good and bad and their effect is blurred.
I've seen quite a few oil analysis reports from 3rd gen dodges (including my own) and don't recall seeing many that had fuel in the oil.
That said, it does stand to reason that a late injection event could do that depending on how often it actually activates.
If I thought it would increase injector life by a decent amount I would get a smarty just to shut that event off. I rarely see above 2k rpm though, so if it is really only at high rpm that it activates mine doesn't see the third event very often (if at all).
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Post injection is on from 1k to 2k rpm at 10-65 mm3. It is a small amount but it is on during light throttle normal driving range. It also comes on during wot from 2800-3200 rpm.
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They may say that. But it is 100 percent untrue
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