Hi, my 2006 astra 1.9 cdti Sri is suffering power loss. I cleaned the EGR valve about 5 months ago. About two weeks ago the power went.... Still drives but u can literally put ur foot to the floor and nothing happens then it'll kick in and go like the clappers! Hard to get the revs up! Anyway it was due for its major service so I took it to the garage where they had a look at it and also did the diagnostic test on it.... Nothing came up apart from it needing a software update? Which I was told only vauxhall can do... Anyway after the service it drove better than ever... The power had come back and everything seemed fine. But today, less than a week later, the power seems to be slowly going again and it did the thing again where foot goes to floor but nothing happens! Just wanna know if anyone's got any ideas? And if anyone knows about this software update thing? There are no warning lights or anything! I'd be really grateful if anyone can tell me what it could be? Before I go and get raped by vauxhall :salute: thanks!