Reprogram an Onboard Computer - MPG Wrong Hi all, I bought an OBC off eBay and the seller said it came from a 1.9 model. However, I am doing about 50 Miles for 8.86 litres so this equates to 25 or so MPG. My OBC says that my MPG is around the 17 MPG mark. Does anyone know if an OBC can be reprogramed ? Cormac Dublin |