Remapping Help/EGR Error Code
Hi everyone, I'm looking for some advice. I bought a an Alfa GT Cloverleaf 1.9JTDM (58 reg) in November 2011. It ran fine for about 4 months then 1 day the Engine Management light came on. No noticeable difference in performance but I took the car into the garage anyway. Can't remember the exact error code but it related to the EGR valve. To cut a long story short after lots of diagnostic work by 2 separate garages they decided there was nothing wrong with the Car or EGR valve and that the car had been remapped by the previous owner, unbeknown to me. As the car was running fine and at the time I was skint I decided to leave it.
Skip forward to now and I'm wanting to sell the car. Obviously I could do with this fixing though otherwise the trade in price is going to take a huge hit I would imagine. The garages who diagnosed the problem seemed to think if I got the car mapped back to default this problem would probably go away. Does this sound plausible, and if so how much £ am I looking at for this work doing? Or does anyone have any better ideas?
Thanks in advance for any help.