EGR Fault Codes – To delete or not to delete, will the EGR delete module fix your problem?
In addition to achieving its purpose of deleting your EGR, the Crisp Mods EGR Delete Modules can also remove certain Engine Codes.
In order for the EGR Delete Modules to work, they require a complete electrical circuit for everything to read as normal to the ECU.
Here is a list of the most common Engine Codes that relate to the EGR (all codes need to be read by a OBD2 Scanner):-
| Fault Code | Reason | Cause | Will the EGR Delete Module Solve this issue? |
| P0401 |
EGR Flow Insufficient Detected
|
This code will come up with a blanking plate or the EGR is stuck closed. Mechanical fault. |
Yes |
| P0402 | EGR Flow Excessive Detected |
The EGR valve is stuck open or is jamming (due to carbon build up or possibly a bent shaft). Mechanical fault. |
Yes |
| P0403 | EGR Circuit Malfunction |
Solenoid circuit malfunction. ECU reads voltage low at EGR solenoid. Electronic fault |
No |
| P0404 | Exhaust Gas Recirculation Circuit Range/Performance |
Solenoid circuit malfunction. ECU reads voltage high at EGR solenoid. Electronic fault |
No |
| P0405 | EGR Sensor A Circuit Low |
The position sensor for the solenoid is malfunctioning. The sensor is reading that the EGR is closed more than it should be based off the readings. Electronic fault |
No |
| P0406 | EGR Sensor A Circuit High |
The position sensor for the solenoid is malfunctioning. The sensor is reading that the EGR is open more than it should be based off the readings. Electronic fault |
No |
| P0407 | EGR Sensor B Circuit Low |
The position sensor for the solenoid is malfunctioning. The sensor is reading that the EGR is closed more than it should be based off the readings. Electronic fault |
No |
| P0408 | EGR Sensor B Circuit High |
The position sensor for the solenoid is malfunctioning. The sensor is reading that the EGR is open more than it should be based off the readings. Electronic fault |
No |
| P1404 | IAT – B Circuit Malfunction/ EGR Closed Position Performance |
The system is reading that the EGR is possibly stuck open. Solenoid issue. Electronic fault |
No |
It is strongly recommended that you buy a OBD2 Scanner if you don’t already own one. Even if you are running a stock vehicle, these scanners are really handy to have as it will cost you around $25.00 minimum each time you need a mechanic to read a code for you.
Hey guys
I just bought the egr blanking plate kit for my D40 09 126kw Spanish Euro4 Nav.
I’m getting mixed answers as to whether or not I also have to fit the egr delete kit cable. I was under the impression the blanking kit & U hose was all I needed. What’s the best option as I haven’t opened/fitted the blanking kit yet?
Cheers
Rosscoe1
Hey Ross,
The delete cable is not required. You generally do one or the other. The delete cable puts the EGR in a state that it never opens but if you black the EGR (remove) then you won’t need the cable as the EGR is removed and there for deleted.