hi, they did say they would do it when i go back for retest but i have to make sure it can be adjusted i.e. not seazed up thats why i wanted to know how to do it, also i forgot to say it is on a 2005 plate.
benson
May 2012
A good garage would have done this for you,takes 1 minute.
cdc
May 2012
You would of been better letting them do it, Next it will fail to low. They have the equipment to do it correct.