tdci sticker on back of car, so unless the bugger who sold it me swapped the engine????
how can the egr valve stop the car starting?

Not too sure to be honest....haha. Ran a diag check and checked a few other forums and it seemed to be a fairly common fault so changed it. I wanted to blank it but my mum said "i want it done right, none of you're half arsed efforts!" haha. thats the thanks you get!

Thats been 5 days now and now probs since.