Vauxhall Zafira A - Zafira 2001 Loss of Power, Fault Codes - Mark Cairns

Hi,

My 2001 Zafira has suddenly lost power, feels like the turbo has stopped working. I managed to get fault codes of it, P1631, P1651 and P0400. There are no warning lights. I've previously got a a warning light with an EGR valve warning which cleared within a minute and then was OK. Any ideas? Just as I was about to buy a new car so typical! Thanks

Mark