How often passive regen takes place?

[Low Budget]

Originally Posted by Super Briar

How do you know when your truck goes into the regen mode? Does it say so on the overhead monitor? I have about 4,500 miles on my '09 & as far as I know it has never regenerated.

Thanks,
Wayne

Your truck should have already had several regen cycles. The OHD does not tell you that you are in regen unless the DPF gets full. The only way to know is to get a monitor like and Edge Insight. I highly recommend it that way you know that you have completed the regen before you stop driving.

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2007 6.7, QCSB, 4x4,68RFE, 3:73, Edge Insight, Amsoil bypass, 35x12.50x17 Dick Cepek FCII on Stock Rims, Smarty S67 14ME, 5" TBE, Smoke Switch, B&G Modified Tune http://www.rollinsmokediesel.com/

[jeff-kc9ftp]

Most are either seeing it on an aftermarket monitor like edge juice w/ attitude or edge insight. I'm sure there are others as well. You can also see it with an EGT gauge. The gauge will run up to around 1200* with no real load on the engine. Depending on what type of burn-off it's doing it may pop up to 1200 the back down all in a fews seconds or it may run up and stay there for 15-20 minutes.

jeff

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2008 Patriot Blue 3500 Quad-Cab, DRW, 4wd, Auto, 5" tbe, Juice w/ attitude (for gauges now), Smarty, B&W Goose, prodigy, MHP tranny tune.

[dad2bike]

One indicator of regen is a sharp drop in mpg on the ohd while cruising on the freeway. If you come to a stop & park while in a regen you'll hear all your exhaust crackling and creaking from the heat expansion. If so a good idea to take it back out for a spin to let it finish.

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Tom
2008 Quad-Cab,LB, 2500, 6.7L, 4X4, White/Kaki, Big-Horn, 3.73 Auto, AS flash, K&N Air Filter, no baffle, Testing in progress- step 4, Stealth DPF, Smarty sw3 PMT gauges. Mag-Hytec Pan & Diff covers.Toms smarty Journal ....... DIY Deletes How-To

Stealth is the WORD!

[azpyroguy]

I believe the injector pulses are 3 per second when not in regen, and either 5 or 6 per second when in regen mode.

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- Scott
2007 Dodge Ram 3500 QC DRW, 6.7, AirAid Intake, H&S 4" TBE-BlackMaxx-Complete EGR Delete, RBP Tailpipe, EBC Yellow/Green Stuff Rear Brakes, BM Engineering Wastegate, HID Lights, MagHyTec Diff Cover, Amsoil Fluids, Panasonic Deck, Sirius, Rockford 3Sixty.2, Power Series Mids/Highs/Amps, ProBox Rocks Dual 10" subwoofers.

[ah64id]

Originally Posted by azpyroguy

I believe the injector pulses are 3 per second when not in regen, and either 5 or 6 per second when in regen mode.

I think you mean per compression/power stroke...

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05 3500 QC LB NV5600 4X4 SRW
Pricol's (EGT, Boost, DP, FP, Oil)
Amsoiled, BMK-11
GDP MK-2+ w/ Cat 2 mic
Smarty Jr Revo

[azpyroguy]

Originally Posted by ah64id

I think you mean per compression/power stroke...

The dodge dealer told me per second... but it could also be per stroke... either way.. its a waste of fuel.

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- Scott
2007 Dodge Ram 3500 QC DRW, 6.7, AirAid Intake, H&S 4" TBE-BlackMaxx-Complete EGR Delete, RBP Tailpipe, EBC Yellow/Green Stuff Rear Brakes, BM Engineering Wastegate, HID Lights, MagHyTec Diff Cover, Amsoil Fluids, Panasonic Deck, Sirius, Rockford 3Sixty.2, Power Series Mids/Highs/Amps, ProBox Rocks Dual 10" subwoofers.

[OwyheeJJ]

I've had a single regen in 15K miles. Heavy mix of slow driving and open road.

[sgsterling]

Originally Posted by OwyheeJJ

I've had a single regen in 15K miles. Heavy mix of slow driving and open road.

You are confused. If your truck is still stock, your truck does regens frequently. You only know of the one because your DPF got so clogged, it had to alert you to act. Normally, there is no indication of a in-process regen at all UNLESS the DPF is 80% or more full.

If you have the right 3rd party gauges or monitoring equipment, you can tell when "normal" regens happen. As mentioned earlier in the thread, if you have some way to see exhaust gas temps-- they climb up during regen. There are monitors like the Edge Insight that read the data port and can alert you to a normal regen. But normal regens are NOT indicated by the stock Dodge stuff.

There are also different types-- passive and active.

Much has been written about regens in the forum. One very good thread that pulled all info together. Maybe a search can find it.

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. Unplugged EGR, otherwise Stock (so far) 2008 Bighorn 2500. QuadCab, 6.7, 6 speed auto, Infernal Red