#2 · Jan 5, 2012 Have'nt got the EGR removed yet. MAF came today so ten minutes should stick it in tonight. My only concern now is a little knocking noise low down in the revs in 1st & gear 2nd. The hesitation/missing seems to be in any gear from approx1600rpm to about 2200rpm. This guide shows you how to locate, remove, and clean your exhaust gas recirculation (EGR) valve on Renault Trafic, Opel/Vauxhall Vivaro, and Nissan Primastar vans. Cleaning helps your diesel engine run smoothly, and it's possible to bypass the valve to increase performance and economy. I'm having a DF647 error (EGR valve position regulation). Have the valve replaced with a new one, persumably faultless, but the error remains. :crazy: Measured parameters are: PR128 (first offset) and PR129 (last offset) are both at 800%. PR022 (position difference) is roughly 50%. Hello ! I have EGR problem, 2007,90ps ,dci, can someone give me a circuit diagram for EGR-ECU, how can i test for a wire break? Fault code : P0409 and P0488. I removed the EGR valve ,and for 12v it is working fine the valve. (pinout 1-5 ) The electrical resistance pinout : 6-2 4,9Kohm. 6-4 1,35Kohm. A comprehensive step by step guide to removing the EGR valve on a 2.0 dci Trafic, Vivaro, or Primastar; featuring Lucy and her self converted camper van. Please consider 'buying us a brew' if this 2.0/1.9dci EGR valve problems; These valves can get clogged up with soot over time, stopping them from functioning properly. Some of the signs that the Renault Trafic EGR valve has gone bad include rough idling, reduced engine power, a failed smog test, and pinging, knocking or tapping sounds coming from the engine bay. If the exhaust flows are Renault Trafic 2.0 DCI 115 LWB, 59 plate. I had a bit of a flat spot and thought that it was about time to clean the EGR valve. There were no error codes or warning lights other than a glow plug associated code. I removed the old valve (Siemens) and was surprised to find that it was pretty clean. nDxZ.

renault trafic 2.0 egr valve problems