Engine Managment Light On

[Badman]

Hi,

Yesterday I replaced the rubber hose from intercooler to egr valve as it had split. on completion I started the engine and noticed the engine warning light did not go out, I checked that all the electrical plugs were connected ( I removed the plug on egr valve and the one on plastic bend below radiator ) they both seem ok but I did find I had forgot to reconnect the vacuum pipe to egr valve. when the pipe was reconnected the warning light still stayed on. Does this need to be reset via fault code reader / computer or does it reset itself when faults have cleared?

Any help on this will be appreciated,

Badman

ps. the car is 2006 2.0L estate with electeic egr valve

[ukjay7651]

fault/code needs to be cleared