[Triggerbot]

So I recently got a stage 2 tune done on my 335D where I was told they electronically deleted/tuned out my EGR. The car felt great for a while, however recently after I lent my car to my brother for a few days, I got the car back only to find out it is extremely slow, I also got a new engine code of P244B which after some googling apparently means the differential pressure is Too High in my DPF. Can anyone explain what this means, and could this be the reason my car is driving so slowly? It's almost as if the turbo isn't kicking in which makes me think it might be an issue with the turbo itself, I've also read online it could be in something called limp mode but the AC, radio and lights and etc are all working, it's just the performance. Thanks in advance for the help!

[RL18]

Originally Posted by Triggerbot

So I recently got a stage 2 tune done on my 335D where I was told they electronically deleted/tuned out my EGR. The car felt great for a while, however recently after I lent my car to my brother for a few days, I got the car back only to find out it is extremely slow, I also got a new engine code of P244B which after some googling apparently means the differential pressure is Too High in my DPF. Can anyone explain what this means, and could this be the reason my car is driving so slowly? It's almost as if the turbo isn't kicking in which makes me think it might be an issue with the turbo itself, I've also read online it could be in something called limp mode but the AC, radio and lights and etc are all working, it's just the performance. Thanks in advance for the help!

That probably means your dpf is clogged. I'd hope your egr delete tune allows your dpf to regen properly

[Triggerbot]

Originally Posted by RL18

That probably means your dpf is clogged. I'd hope your egr delete tune allows your dpf to regen properly

Do you think a manual Regen through an obd2 reader would solve it? I also just got a new code thrown up (P0402) which is related to the EGR, and my car just officially threw up the limp mode/low engine power mode light. I was thinking of ordering a carista tool just for that functionality if they have it

[RL18]

Originally Posted by Triggerbot

Do you think a manual Regen through an obd2 reader would solve it? I also just got a new code thrown up (P0402) which is related to the EGR, and my car just officially threw up the limp mode/low engine power mode light. I was thinking of ordering a carista tool just for that functionality if they have it

Before you do anything I would contact your tuner. They obviously screwed something up if your dpf is clogging. The scan tool isn't a bad thing to have though

[lnxguy]

Stage 2 tune with DPF intact? Since when?

[Triggerbot]

Originally Posted by RL18

Before you do anything I would contact your tuner. They obviously screwed something up if your dpf is clogging. The scan tool isn't a bad thing to have though

Yeah when I called him he told me he made a mistake.and I would have to bring it back , but he can't do anything until next week because he's super busy right now, but I really need my car out of limp mode quickly, I already have a tool ordered because I needed one anyways, I'm just going to try running a force Regen to see if that will fix it

[Triggerbot]

Originally Posted by lnxguy

Stage 2 tune with DPF intact? Since when?

My tuner as with a few others run stage 2 with all stock hardware, but tune out the EGR and DEF, while leaving the DPF. I Have the DPF on the way now but it will take a while (2-3 weeks) so until then, I'm running a tune with stock hardware, once I get the downpipe the tuner will reflash it for free to run properly with a dpf delete

[lnxguy]

Originally Posted by Triggerbot

My tuner as with a few others run stage 2 with all stock hardware, but tune out the EGR and DEF, while leaving the DPF. I Have the DPF on the way now but it will take a while (2-3 weeks) so until then, I'm running a tune with stock hardware, once I get the downpipe the tuner will reflash it for free to run properly with a dpf delete

This is why you do it all at once Goodluck.

[e90Noobie]

JR tuning has a stage 2 tune that allows you to leave all stock hardware installed. I don't really trust anyone else.

[Captain Buumer]

Actually i'm also surprised they left DPF intact.

I'm keen to know if regens now occour more often or less?