Hi, I am having a very hard time passing air care here in vancouver canada i have failed air care 4 times thinking about trying some methol hydrate this time around. I already had a new cat installed along with new plugs and O2 sensor... what els can i do? should i go with the MH i was told to fill up around 10L of gas and put 1l of MH then drive for around 30 min before taking it in..

the first fail is before i got the cat installed the 3 after are a little bette but im still failing

to see the air care results type in my vin to this link
AirCare emissions testing program | Inspection Info - Vehicle Entry Form

VIN- WDB1260451A607941

Thanks.