Select Page

EGR Fault Codes – To delete or not to delete, will the EGR delete module fix your problem?

by | Mar 8, 2019 | Technical | 0 comments

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 CodeReasonCauseWill 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
P0402EGR 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
P0403EGR Circuit Malfunction

Solenoid circuit malfunction. ECU reads voltage low at EGR solenoid.

Electronic fault

No
P0404Exhaust Gas Recirculation Circuit Range/Performance

Solenoid circuit malfunction. ECU reads voltage high at EGR solenoid.

Electronic fault

No
P0405EGR 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
P0406EGR 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
P0407EGR 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
P0408EGR 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
P1404IAT – 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.

  • Sign up
Password Strength Very Weak
Lost your password? Please enter your username or email address. You will receive a link to create a new password via email.
We do not share your personal details with anyone.