Cummins BBZ ISX CM2250 EPA10

DPF EGR DEF SCR DELETE

Requirements for online tuning:

*diagnostic adapter compatible with Insite software

(Nexiq USB Link, Dearborn DPA, Inline & many others)

*laptop with Windows 7, 8, 10 or 11 operating system

*internet connection

Tuning specification:

*regen disabled

no derates or fault codes related to DPF/EGR/DEF/SCR

*DEF gauge showing 3/4 full all the time

power upgrade according to engine serial number(CPL)

*fleet safe tuning (engine is not over powered)

Work required after the tuning:

*hollow out or bypass all filters on exhaust

*block off EGR on both sides

*unplug EGR sensors

*unplug DPF/SCR sensors

In order to do a proper EGR delete You have to do following:

EGR delete ECM tuning

block off EGR gas flow

unplug EGR valve connector

unplug EGR sensor connectors

ECM tuning:

Our ECM tuning will allow you to block off EGR valve, and unplug all EGR sensors.

Keep in mind that along with EGR delete, we must delete all the filters on exhaust (DPF DOC SCR), and DEF if the vehicle is equipped with it.

All our Cummins EGR delete tunes come with a fleet safe power upgrade.

This upgrade will provide You the best fuel economy.

List of all our delete tunes for Cummins engines.

Work that needs to be done:

The basic principle for blocking off EGR is the same on all engines.

EGR has to be blocked with steel plates on both cold & hot side.

1st block off plate goes on position where EGR manifold meets exhaust manifold.

2nd block off plate goes on position where EGR manifold meets intake manifold.

The reason we recommend blocking off EGR on both sides, is because that way engine will run the best.

Once You block off intake(cold) side, Your intake manifold air volume & geometry will not be messed by EGR tubing.

There will be no chance of sucking air from EGR manifold, and that way causing an air leak.

Same thing is for exhaust(hot) side, Your exhaust manifold geometry will be again according to factory spec.

Here is an example of the EGR's hot side plate position.

The photo is taken on CM2250/CM2350/CM2350A X15 ISX, but all other Cummins engines(CM871, CM2150D, ISL, ISC, ISB, ISM) are similar

Here is an example of the EGR's cold side(intake) plate position.

The photo is taken on CM2250/CM2350/CM2350A X15ISX, but all other Cummins engines are similar

Next thing to do is unplugging EGR valve's electrical connector.

Again, this photo below is from CM2250/CM2350, but all other engines are similar.

Now we need to unplug EGR sensors.

There are two types of sensors we need to unplug:

EGR differential pressure

EGR temperature sensor

Below are the photos of EGR sensors locations on CM2250/CM2350/CM2350A X15 ISX.