I have a T reg citroen saxo 1.1i. It has failed the mot for 'Exhaust emissions carbon monoxide content at idle excessive 7.3.2c'
I had a new cat and exhaust put in last year which didnt change the problem, as the exhaust seems to make a popping noise and you can often smell the fumes, it also floods a lot and ownt start, we have changed the fuel injector which didnt make a difference, have changed the spark plugs which helped slightly but didnt get rid of this ongoing problem. do you think its the sensors? if so are they exepensive to buy from a shop so my boyfriend can change them and is it hard to do? or shall i take the car to citroen and ask them for a quote so they can at least tell me where the problem lies?
I had a new cat and exhaust put in last year which didnt change the problem, as the exhaust seems to make a popping noise and you can often smell the fumes, it also floods a lot and ownt start, we have changed the fuel injector which didnt make a difference, have changed the spark plugs which helped slightly but didnt get rid of this ongoing problem. do you think its the sensors? if so are they exepensive to buy from a shop so my boyfriend can change them and is it hard to do? or shall i take the car to citroen and ask them for a quote so they can at least tell me where the problem lies?