I havea warning light coming up on my car which states the egr valve is faulty, my mechanic has cleaned it only for the problem to happen within 20 miles of driving the car so we bought an EGR Valve from a breaker and again it worked but after about 20 miles the warning light has come on again ! Does anyone else know of this issue and a solution, it is possible that the repacement valve is also faulty but a new one is £300 plus fitting so before I go down that route I need to check it can't be anything else as it could be money not so well spent.