VauxhallTrafic Primastar EGR Valve in situ on the 2.0L M9R engine http://www.injectorshop.co.uk TheEGR valve and pipes were completely full and blocked with carbon deposits which was stopping the valve from working properly. Blocked EGR pipes. We replaced the EGR valve and cleaned out all the pipes to and from the valve, this cleared the codes and allowed the vehicle to drive at full power. New EGR fitted. Location Reykjavik, Iceland. by Thrall » Wed Nov 01, 2017 12:24 am. Wow, so not a very quick fix. Hound, do you have the relevant diagram for the 1.6 Dci, as all information about maintenance of those engines seems to be almost a state secret After 105,000 kms., I suspect an EGR clean might be in order. Thank you. Symptomsof faulty EGR valve include: Poor engine performance, Engine check light, Smell of unburnt Fuel from exhaust, Failed emissions test, and Rough idling. Heym8 under the water bottle top right of the engine bay is a fuse box. i had the same issue plugged in a new egr valve and it blew a 30 amp fuse. without this fuse your engine will not run as its part of the fueling system.. unplug new egr change the fuse. plug in old egr and off you go. this also stops you from checking engine diagnostics if Youll notice one or more of the following symptoms: A rough idle upon starting the engine (that is, when the engine is cold) and sometimes at a stop light or while looking for a spot in a parking lot (that is, at low engine speeds in a warmed-up engine). Stalling when the engine idles. Increase in fuel consumption. Signsof faulty EGR Valve.Music from #inaudio: this video helps. Don't forget to like and Subscribe!!! A“sloppy” or rough idle can be caused by one of several things. One of the reasons that your truck may have a rough idle is due to a defective EGR valve that is stuck in the open or closed position. 2. Excessive Smoke. Modern diesel engines produce next to no smoke. Coal rolling, locomotive-like engines are now a thing of the past. Thiswill cause the engine to go on running until it has consumed all its oil and then it will go bang.Problems with EGR valves in Renault dCi engines are often the cause of rough running when the valve is stuck in the open position as well. Despite the car suffering exactly the same symptoms as those that are covered it would appear that TheEGR valve plug is the one on the right as you look at the engine bay. Shown in the middle of this picture To remove the EGR valve you need to take out the whole section of the EGR system at the front of the engine. Before you begin removing anything, pull out the electrical plugs. There is a rubber pipe at the left end. ZEDZpD.