Plex Posted October 5, 2013 Posted October 5, 2013 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 Quote
aidan Posted October 5, 2013 Posted October 5, 2013 chuck cats back on for test or try another test centre? Quote
Rob22 Posted October 5, 2013 Posted October 5, 2013 Why did you need spacers? Are you using hi flow cat or decat pipes? Quote
WhackyWill Posted October 5, 2013 Posted October 5, 2013 (edited) Cats back as Ekona said and make sure the engine is as hot as possible before the emisssions test. Edited October 5, 2013 by WhackyWill Quote
Plex Posted October 5, 2013 Author Posted October 5, 2013 bought the car as is so could;t tell you if the cats are off. How do i find out? Quote
Plex Posted October 5, 2013 Author Posted October 5, 2013 Why did you need spacers? Are you using hi flow cat or decat pipes? I'd asked what to do if check engine light was on and the codes pointed to emissions or something like that. Quote
Rob22 Posted October 5, 2013 Posted October 5, 2013 First option would be have a wee look underneath and see if there are cats in there. If you're not sure what you're looking do you know the guy you bought it from? is there anything in the service hx or receipts for new cats? If the car was on standard cats it would be less likely to be a problem for MOT. Quote
jumping350 Posted October 5, 2013 Posted October 5, 2013 Either you have decats or your current cats might be on way out, friendly m.o.t guy or get some cats, if they are fussy you wont find anyway round other than putting cats back in, did you fit the spacers? If not ask the person who did Quote
Clarkie Posted October 5, 2013 Posted October 5, 2013 If you have high flow cats on make sure the guy doing the testing is aware so the car can be taken out to warm them up before testing as soon as possible otherwise it will fail the test. I had to do this with my Berks after they were fitted. Quote
Neilp Posted October 5, 2013 Posted October 5, 2013 Take your car to a performance garage who knows there cars. Thats the best way to pass an mot with HFC or Decats 1 Quote
Jetpilot Posted October 5, 2013 Posted October 5, 2013 I am guessing it would not pass if it had decats as its a mot fail and the fact he needs a spacer suggests its some form of aftermarket cats. I would try a tin of Cataclean before you do anything drastic and perhaps identify what you have for the masses to offer more help/ Quote
Ekona Posted October 5, 2013 Posted October 5, 2013 I would also advise letting your insurance company know what's on there Quote
Plex Posted October 5, 2013 Author Posted October 5, 2013 (edited) Thanks for all the responses guys. Really helpful. I'm thinking of taking it to a high performance garage as Neilp suggested to get it looked at. I'm in Wootton Bedfordshire. Anyone local to me that can point in the right direction? Edited October 5, 2013 by Plex Quote
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