My freelander mk1 failed the mot on emissions, the CO reading was 0.80 the limit is 0.3 and HC was 248 and the limit is 200 ppm, this was on the fast idle test.
The lambda and speed test was ok, 1.04 for lambda, speed 2694 /min.
What can cause high CO and HC readings?
I took it this morning for the test cold didn't warm it first, i'm thinking i should have taken it on a good drive to warm her up as i haven't been driving or using it lately for any long runs only small 5 minute trips to the shops.
I put a new exhaust mid section, cat and back box on about six weeks ago, i got them from eurocar parts, i'm thinking it may could be a dodgy cat, as any one bought and used the freelander catalytic converter from eurocar parts, are they good quality, how can you tell if the cat is not working as it should.
The front lambda sensor was change last year so is just short of 12 months old.
I've put a bottle cat a clean in the petrol tank, i've topped up with super unleaded and taken it on a long drive hoping this may get the readings down.
Is there anything else i can check or do before i take it back for the retest.
Thanks for looking.
The lambda and speed test was ok, 1.04 for lambda, speed 2694 /min.
What can cause high CO and HC readings?
I took it this morning for the test cold didn't warm it first, i'm thinking i should have taken it on a good drive to warm her up as i haven't been driving or using it lately for any long runs only small 5 minute trips to the shops.
I put a new exhaust mid section, cat and back box on about six weeks ago, i got them from eurocar parts, i'm thinking it may could be a dodgy cat, as any one bought and used the freelander catalytic converter from eurocar parts, are they good quality, how can you tell if the cat is not working as it should.
The front lambda sensor was change last year so is just short of 12 months old.
I've put a bottle cat a clean in the petrol tank, i've topped up with super unleaded and taken it on a long drive hoping this may get the readings down.
Is there anything else i can check or do before i take it back for the retest.
Thanks for looking.