When I bought my 2002 S3 at the beginning of July it had an engine management light on. Car drove fine and the owner said that the code comes on cos the the car is remapped so it's an over boost. He got it reset and then it came on for a couple of days later. Lately it's been worrying me a little so I thought I'd post the codes here. Can anyone confirm there isn't much to worry about or if there is something I I could do to get rid of them permanently?
17544 Fuel Trim Bank 1(Add) System too lean P1136
17963 Charge Pressure Maximum Limit Exceeded P1555 intermittent
I'm guessing the last one is due to over boost?
Thanks in advance