Car went into Honda today to be diagnosed for a intermittent vsa and abs light which comes on randomly sometimes. They said a code came up relating to ecu failure but the code did not re-occur after they cleared it. I was a bit sceptical as I know what dealers are like for conning you and ecu happened to be like £1000. They said it will need new ecu if car keeps getting fault. So firstly does this sound true and secondly can you use a second hand ecu they said you cant but then why would people sell them ??