The trouble with a lot of the aftermarket piggy computers ( especially the old school ones ) is they don't have the ability to self correct when the oxygen sensor or afm starts going out of whack . Even the Power FC can have that problem as it uses the afm for reference. Better if going down the path of aftermarket is to use a computer that relies on MAP sensor such as Autronic , Link, Motec as they don't change..
Cheers
Ken
The above is personal opinion and I am sure I will be shot down for the above comments.
