I have a 2007 Citroen relay van it is the 2.2 engine (same as transit).
On startup when cold it has an uneven idle and sounds like it's trying to stall but doesent , however once it warms up it idles a lot better. I'm also experiencing a loss of power with very poor fuel economy and a strange squealing sound usually around 3000rpm although will do it earlier in the rev range if I put my foot down . I've noticed some white smoke for a minute on start up on cold days aswell but only for a minute ( been told this could be condensation in exhaust ? ) . A couple codes come up when I got it plugged in , TURBO PRESSURE VALUE TOO HIGH, - INTERMITTENT AND EGR FLOW TOO LOW, AIR TEMPERATURE SIGNAL SHORT CIRCUIT TO + OR OPEN CIRCUIT- THESE ARE PERMANENT FAULTS. Does anyone have any ideas what this could be ? Been told my turbo is fine and I have a egr blank (done after got the codes read) . Also I'm very dubious about taking into a garage as my local one told me my van runs fine and has plenty of power lol although I drive this daily and it feels like I have no turbo anymore ! He put the squeal down to the gearbox and was ready to let me spend £1500 on one however one of my friends said this was unlikely to be the problem and should hold off . Any help would be GREATLY appreciated I'm at a total dead end
