Hi guys
This is why it failed...
Reason(s) for refusal to issue Certificate
Exhaust emissions carbon monoxide content after 2nd fast idle excessive (7.3.D.4)
Exhaust emissions carbon monoxide content at idle excessive (7.3.D.5)
Where would you guys start? My check engine light used to stay on so I bought spacers from Alex. This kinda fixed the problem. It did come back on from time to time but didn't stay on. Now the car has failed it's mot. Help!
Cheers