Engine MIL

When I brought the car, the MIL (Malfunction indicator lamp) was illuminated. A quick check on the Daewoo & Chevrolet owner club forum led me to Amazon to purchase a u480 OBDII DTC scanner. The scanner arrived today and I went about fixing my fault. The plug for the scanner plugs in in a port situated under my glove compartment. I plugged it in and even with the ignition off the scanner kicked into life with 'MEMOSCAN U480' displayed on the screen. The scanner indicated there were 2 faults... For the first fault the code was displayed as 'N/A', the second code was displayed as 'P1403'. I reset the codes, rescanned the car and there were now no faults. A quick turn of the ignition and the car started as normal, but with no MIL... Result! A quick search of the internet revealed the code was EGR (engine gas recirculation) valve faulty. I will run the car for a while and hopefully the code will not re-appear.