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%.
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.
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renault trafic 2.0 egr valve problems
