View Full Version : BMW X5 E70 4.0D EDC17CP45 - EGRoff problem

7th July, 2017, 10:56 PM

please help me with EGRoff on this car. I tried Swiftec solution but after the mod car has problem with boost regulation. Around 1600-2000rmp car shows DTC 4530 (low preasure). I made log file and have big diferences between specified boost and boost measured (around 500mbar). In a higher rmp boost regulation is correct!!

Is there anybody who have tested/working solution for EGRoff for this ECU EDC17CP45??

thanks for help

7th July, 2017, 10:57 PM
egr off no problem on this ecu but your car will never regenerate dpf by self :-)

7th July, 2017, 11:03 PM
DPF will be out. I have swiftec solution for EGRoff + DPFoff. DPFoff works fine (switch solution) but after EGRoff car has problem with boost regulation aroud 1600-1900rpm. I think there must be problem in mod

8th July, 2017, 03:29 AM
You said well .. but you know what made her. Can be there is a not good probe.

8th July, 2017, 06:06 AM
Here is full swiftec solution which has problem with EGroff and boost control.

8th July, 2017, 07:43 AM
Here is full swiftec solution which has problem with EGroff and boost control.

Are you sure the swiftech solution is egr off instead of fap off ??
Disconnect the egr plug and write the dtc present .. you can delete egr in a simple ...

8th July, 2017, 12:21 PM
Yes, because DPFoff solution is on address 382B36 - only two bytes switched to zero.

When I have disconnected EGR in ECU is DTC
- 4CAE - egr controller position sensor

9th July, 2017, 01:47 PM
Anybody could delete DTC 4CAE in this ECU? thanks

10th July, 2017, 08:59 AM
Only with dtc off than car will go in limp mode and new dtc are stored related to "underboost". You have to bypass/set in file if position sensor from egr are present or not !

10th July, 2017, 09:12 AM
OK, you are true, tried it yesturday and only DTCoff did not work. Could you help me with this bypass/set? I found hysteresis maps but in this files are more than one and I dont know which one is necessary to set to zero or all are needed to set to zero.