Can I initiate a forced regen while driving? X15

PDI tuner on an emissions engine ? That will be a first I’ve heard off, let me know how it turns out.

 

No, you can not do it while driving. Must be parked with park brake on, plus some other requirements must be met, coolant temp, no aftertreatment faults, ect... just to name a couple.

 

The parameters are designed to ensure the vehicle is stopped and idling. Parking brake must be engaged, PTO disengaged, coolant at operating temperature, and the soot level must be high enough to trigger a code to request a parked regen. Unless you're pulling a bunch of light weights doing local runs, it should be able to burn off while driving. If it's not, you will need to figure out if your DPF has too much ash accumulated, 7th injector not working correctly, or if you have a loss of exhaust pressure causing the system to believe it is full when it's not. You can get software like OTR Performance or Cummins Insite to force a regen while parked before the DPF gets full, but if it's happening often, then you are better off fixing the problem. You will waste a bunch of fuel and wear out the components quicker performing unnecessary regens.

I would probably do a tune up on the system to see if it fixes things. All you should need is a small floor jack and socket set. DPF Alternatives can clean and test your filters. While they're doing it you can take the day to clean up the 7th injector, DEF doser(unrelated but might as well while it's off), inspect for DEF crystal build up between doser and SCR box, test unplugged EGR valve with rubber glove to make sure it doesn't allow gas to bypass it while closed, clean up EGR venturi pipe and sensor ports. If everything looks good, reinstall DPF with new clamps and gaskets, ensure there are no exhaust leaks, and hopefully your problem is fixed. I don't know what the company charges to clean them, it used to be like $250 or $400 or something. You should easily be under $1000 with the cleaning and new clamps/gaskets. You could also just buy new filters for peace of mind, but it's not a guaranteed fix.

If you are still having trouble, you'll need Insite or somebody who can hook up and read the data to determine if you have faulty sensors or components. I'm also not very familiar with X15, I'm assuming it's like the ISX and they haven't moved to a harder to service one box system.

 

How often are you trying to perform a regen?

The engine and aftertreatment is designed to be automatic and without driver intervention.

If your getting frequent lights , MIL light , CEL , DPF lamp, regen required, The truck is broken.

Timed regen intervals for this engine are 100 running hours. Running stationary regens more frequently is unnecessary and a waste of fuel.

 

How much do you think OTR payed him? They are trying to sell their tool after all……..

These tools create nothing but problems for guys like me. There’s nothing worse that trying to diagnose a problem when someone just cleared the codes, freeze frame data and monitors and forced a regen that day before they brought the truck in to the shop. Then they get mad because I couldn’t track down the problem.

DEF usage has nothing to do with the regeneration process.

95 percent of DEF usage complaints I see are within allowable limits of the system. Most complaints are related to driving conditions and not necessarily a broken truck. Wait for the truck to tell you what’s wrong. IE, CEL.

Keep the system clean. Fill cap In place and secured. Vent filter in place. DEF filters, screens and the sock in the tank are critical areas of blockage that cause breakdowns.

Track your DEF usage vs fuel usage and let me know where you’re at.

 

@Deezl Smoke this statement ABOVE from @Goodysnap is 100% accurate. I have the OTR tool and it has help and cause headaches. I don’t know if you read one of my posts on here where I stated I just spent almost 10k on a new DOC and DPF. This is where the OTR was being a problematic, regardless. If your worried about using to much DEF, let me make it short, the heavier the load or harsh road conditions, this will make the system use more DEF. I learned this because I was thinking like you. The lighter the loads equals less DEF. I’m new to this emission BS but I have to live with it since I’m in COMMIEFORNIA. And just to give you a heads up, the DOC and DPF have a life of around 500k according to CUMMINS before you’ll have to spend to replace the system like I did. Luckily I hit 700k before I just did mine.

 

@Deezl Smoke the OTR tool is only a patch job. The problem will not go away. Only benefit of this tool is getting rid of the “ghost”codes, that’s it. If you’re so into keeping up with any emissions problems, get a laptop and invest in the software for your application. OTR will try to sell you there set up but there just brokering there services because you will still need Cummins insight when you can go directly. There are other ways to get a Cummins set up but I’m not going to post here.