A regen cannot be commanded until the percentage is 100%. Also note that the truck must be in part with the brake set to command a parked regen. To my knowledge, (at least on my 17) a moving regen won't even begin until the percentage gets to 100%.

This is why when I get close to 100 I'll unchecked auto regen. Once it gets full, a message comes on saying to clean soon. If im on a long enough freeway drive, I'll go back into settings and uncheck the box and the regen begins.

In forscan the option is added in the "plain english" side of the settings. It's not available thru the as-built side. Iirc it's in the plain English side of the IPC module. Just flip thru the plain English modules and you'll find it.

I've noticed that if the percentage is about 55% or higher, it will kick out of regen if you slow down and stop. I've also noticed that a regen will kick out after about 40 miles regardless of percentage.

I dont have anything permenently hooked up to show if its in progress or not. This is just from looking at egt's and looking at the egr position with a scanner. Also note that if you're driving and a regen is taking place, when you let off the throttle completely the boost gauge will drop to 0, then come back up to about 5psi. Usually I can tell pretty easy that a regen is occurring by this subtle cue (note that if the exhaust brake is active it'll do this even without a regen going on)

Just my two cents. Once I figured out how it works its pretty easy to get it all the way down to 0% with a freeway drive.

 

On my 22 I have been able to enable an active regen at 90 and 95%, however, this is also due to mileage. I keep my auto regen turned off, so I can easily go beyond the 500 mile trigger, but once I am past that mileage mark the active regen will begin anytime the auto regen is turned back on. Also, I have never had my active regen pause/stop because I had to slow down. It only turns off after the truck reaches 0% again.

 

Pretty much what I experience too. So far mine is at 85% on the dash, and 65% on the iDash. I have over 1100 miles since the last regen, so it will kick in the moment I switch it active based purely on miles alone. I was going to kick it at 50% idash, but got curious how high it goes when the dash reads 100%.

 

Maybe I don't know how to start a manual regen or perhaps I have something set wrong in Forscan. Like others have said, I watch the DPF % and if it gets close to 100% when don't have far to drive, I uncheck the auto regen box until I have a long enough trip. So when it is in this condition (DPF 100%) how do I start a manual regen if I wanted to do it while stationary? I've never noticed a screen that would allow this but maybe I'm missing it.

Another possibility is my Forscan programming is wrong. I checked the PCM plain english screen as mentioned above and it looks ok. The only clue I found was on the IPC plain english screen; on the "manual regeneration" line it indicates "disabled", but when I change it to "enabled" and try to write, I get a "incompatible configuration" error and it reverts to "disabled"; maybe this is a red herring.

I took screen shots of PCM plain english, IPC as-built and IPC plain english with the fail message, Any help is appreciated.

 

This video should help explain the procedure.

 

Thanks. Next tine I hit 100% I'll look, but I do not remember seeing a message like that: "exhaust filter full, hold ok to clean". I don't think I have an "exhaust filter status screen".

 

It's the DPF status screen, same place you view the DPF%. When full (100%), in park, auto regen box unchecked, it should look something like this.

 

Thank you. I will look next time I hit 100%; probably just me not being very observant.

 

According to your sig you have a Lariat. If that's the case, the only way you will have the DPF% screen or the Auto Regen checkbook is if you added it with Forscan. Only XL's and XLT's even come with the OCR option from the factory, however, it can be enabled on any of them. I can't say for sure (so someone can correct me if I am wrong), but I imagine that if you haven't enabled OCR, specifically the auto regen checkbox, you won't get a message saying "Exhaust Filter Full" since auto regen is enabled by default. The truck should take care of the regen on it's own... unless maybe you have been shutting the truck off during a regen and the truck hasn't been able to complete a regen, or at least knock enough off to matter. This is why many of us enable these screens so we actually know when it's time to complete a regen, and then have better control of the regens.

 

In post #34 he explains how, like others, he watches the DPF% screen and will un check the auto regen box when he knows that his drive will not be long enough to complete a regen. I don't believe the auto regen box would be there without OCR being enabled.

 

That's a valid point! LOL...

 

OK Here's a fun one!

This morning, dash 95%, iDash 79%.

Drive in this morning, snow, slow travel, 35-45 MPH, and after 40 miles I check. Dash 95% (still), iDash 33%. Looks like the slow driving helped clean the DPF a bit since it dropped over 40% since leaving the house. Normally it would have hit 100$ by the time I got to work 60 miles later, so something helped clean it. Once the dash hits 100%, I will mark the miles and perform a full regen to see how far between it goes with daily driving. So far 1275 miles since the last regen completed.

 

I go the Manual regen route. Will turn OFF auto regen until my truck shows 100% or I get the regen soon message. My question is this. 1. The forescan lite never shows the same % as my truck, but I do go by the truck. The forscan lite app will show 65-70% when truck shows full. Is it safe to drive a bit with the truck at 100% or should I immediately turn on regen. 2. When auto regen is on and the truck reaches 500 miles, it goes into regen no matter what % it shows. Then it is in regen for well over 20 miles no matter if it reached 0%. I've been turning off the auto regen when this happens, and it stops right away. should I do this, or let it stop by itself. Seems a waste of fuel to let it regen when it's reached 0%. The forescan lite shows about 6% at this point. A little confusing for my OCD mind. lol

 

I had a partial regen activate on my way home yesterday, just a block away from my driveway. Pretty frustrating. I pulled in, thought about it, and then headed back out for a 30 minute drive to clear the regen. Without having to purchase any aftermarket contraptions, or enable secret abilities via Forescan, I wish, from the factory, Ford would give you the option to run user activated regens so that I wouldn't have to spend more time driving or wasting fuel driving to clear the system.

Mike

 

They do, but only for XLT and bellow for some reason, and it's $250 instead of practically free with Forscan.