The exhaust gas re-circulation valve known as “EGR” block can become the cause of engine malfunctions.
This can be one of the most problematic components of a vehicles running system.These valves simply clog up with carbon from your exhaust and cause lack of power,smoke problems,hesitation,and hard starting issues.
These can sometimes be cleaned and all problems disappear.
We can clean this valve and close it permanently using electronic methods.
This will rule out any further problems for the life time of your vehicle.
It will not effect Nct Testing in anyway.
P codes relating to this fault are listed below
P0400
P0401
P0402
P0403
P0404
P0405
P0406
P0407
P0408
P0409

