problem with Vauxhall Vectra 2.2diesel Elite

[Josh1994]

Well got the rac person to have a look at the car and asked for the code, but the person was arrogant and deleted the code so i managed to see the first three which starts with P01, there was a pipe which manages the turbo and plugs into the EGR Valve, which had a hole in it, he selotaped it in black insulation tape and plugged it back in thinking it was that, my mum drove it home and the light came on then two seconds later went off, my dad had a look at it and took the pipe off then started the car for 20minutes which the light didnt come on, so wasnt that, i dont know what eles it is, it could be the map sensor which i will take off and give a good clean.