Unfortunately the response of your people sounds like a scatter gun effect with no real logic behind any of the things done to date. Most things in the control funtion do not fail and if they do then the fault code reader catches most of them. Catalysts tend only to fail if run to weak and th
First stage is to make sure that the correct test was used and what values
apply. Obviously dependent on the age of the vehicle (date of first
registration) and engine. Could be that the test station 'engineer' has made
a
mistake.
As an example a Q plate vehicle should only be tested for
I took my H4 to my local garage for the annual MOT following a new cam
belt, plugs, filters and oil. It shouldn't have failed..but it
did.on emissions. And this is where modern mechanics enters (for
me) the realms of voodoo or witchcraft. It's a fuel injected 16v zetec
with about 40k on the clo
