can anyone help with egr valve.Have a vectra 1.9 turbo diesel (120) 04 plate.Car was losing power and using fuel,fitted new egr valve.Now car is juddering in low revs in 2nd and 3rd gear but find it clears itself higher up the revs.Have left the plug out car is running fine but using alot of fuel.Its not an actual vauxhall egr valve have been told it may have to go into vauxhall for software update.Anyone suffered same problems or have any solutions please???
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