335d DIY piggyback tuning option!!!!!!!!!!!!!!!!

[dixy2k]

yes i did, but i have the dpf deleted via ecu now. Its a cleaner solution in my opinion. But then harder you raise the rail pressure them more carbon is building up during combustion. Maybe a water injection system could help lowering that.
Without removing the dpf and raising the rail pressure you will sooner or later get problems with a full DPF. Mine was already full without any tunings at 80000 km. Cant imagine how bad it would have been if it was tuned for that 80000 km.

50k mi here or roughly 80Km and going through some deep cleaning of the engine right now.
The dealer had to replace the EGR valve and both turbos.
The DPF was actually clean.
The shop foreman explained to me that the valve between the two turbos was stuck because of the carbon deposits ant the smaller turbo almost non functional.
He recommended to block off the EGR valve in order to solve this issue.
Apparently the DPF regeneration worked fine, but being the last piece of equipment in the emission system it was not affected by the negative effects of the EGR valve.

Somehow the X5 diesel has a better system than the 335d in which the clean gases that come out of the DPF are returned to the intake instead of taking all that dirty spent air from the EGR and clog up everything else.

In my case, I don't think a DPF delete kit would help me much. EGR delete definitely would.

[infowolfe]

You just need to talk to Renntech. Lenny is the guy.
@m54b25

Or call your nearest Mercedes Benz dealership that happens to also be a reseller. Mine 30 minutes south of me quoted me $500 in labor to pull my ECU and ship it. (E70 X5)

[Puerto Rican 335d]

$500 to remove an ECU; ABSURD!!! You can do it yourself and ship it out overnite

[Hoooper]

Pulling the DDE is like a 5 minute job, are they joking with $500 in labor? Maybe that included 4 days of car storage at $100/day

[TTDswe]

Im in the process of modifying my signals as well, but on a more "low-tech" level.

Is a 1k pot enough to modify my boost signal? Or do I have to be all fancy, and buy a voltage regulator?

[Sticky]

Is a 1k pot enough to modify my boost signal?

What do you mean here?

[TTDswe]

Can I turn down the voltage with just a 1k or do I have to have something else to? Like another resistor, diodes or anything else? Cause if I get the voltage signal back to the Ecu lower = more boost, right?

[TTDswe]

1k pot= 1000ohm potentiometer, just to make clear

[Sticky]

1k pot= 1000ohm potentiometer, just to make clear

Thanks, I was about to ask.

[TTDswe]

Thanks, I was about to ask.

Still looking for answers tho. I'm new with this, modifying voltage signals I mean.

Already got a ECU flash, planning on running a plugin box for even more fueling but to make use of the extra fuel I need to bump the boost up a bit.
so I gladly take any advice on how to, got a potentiometer laying around so thought I might play around with it.

[Sticky]

Still looking for answers tho. I'm new with this, modifying voltage signals I mean.

Already got a ECU flash, planning on running a plugin box for even more fueling but to make use of the extra fuel I need to bump the boost up a bit.
so I gladly take any advice on how to, got a potentiometer laying around so thought I might play around with it.

I wish I could could help. Hopefully someone else chimes in.