The first step is to either remove the EGR valve entirely by using the best
EGR delete kit or install block-off plates to prevent exhaust gases from recirculating. This step is relatively straightforward if you're comfortable with working on your vehicle.
With the OBDLink EX and a compatible software tool, you can read and clear trouble codes, but simply clearing the CEL won't solve the problem long-term because the ECM will continue to monitor the EGR system. To permanently disable the EGR system and prevent the CEL, you'll need to modify the ECM’s programming. Always make a backup of your original ECU map before making any changes, so you can restore it if anything goes wrong. Finally, while it’s technically possible to do an EGR delete on a 3rd-gen Range Rover using an OBDLink EX and a laptop, it's a complex task that involves more than just basic code clearing.