1.1 HCS emission trouble
#1
1.1 HCS emission trouble
Hi guys and gals
Been a member of the site for quite a while now and have a good gander through regularly, but don't post that much, so hello!!
Anyway, my girlfriend has an N reg 1.1 hcs mk3 fiesta, it has covered 56k miles. It has failed the MOT on emissions as the carbon monoxide (CO) level is twice as high as what it should be!!
The lambda sensor reading on the MOT printout was normal. Does anyone know if there is any sort of adjustment that can be made to lower this CO level? As I understand it the fuel mixture is too rich. If the lambda sensor is giving an ok reading, could it still be that it is knackered, and a replacement would be necessary??
Any help would be much appreciated
cheers
rich
Been a member of the site for quite a while now and have a good gander through regularly, but don't post that much, so hello!!
Anyway, my girlfriend has an N reg 1.1 hcs mk3 fiesta, it has covered 56k miles. It has failed the MOT on emissions as the carbon monoxide (CO) level is twice as high as what it should be!!
The lambda sensor reading on the MOT printout was normal. Does anyone know if there is any sort of adjustment that can be made to lower this CO level? As I understand it the fuel mixture is too rich. If the lambda sensor is giving an ok reading, could it still be that it is knackered, and a replacement would be necessary??
Any help would be much appreciated
cheers
rich
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I've got the same car, same reg, engine size etc and the MOT tester revved the hell out the engine for some time to get mine to pass. He joked that it passed because it ran out of oil. Shortly after that i blew a piston ring and burnt a hole in my valve - different cylinders - still ran for a couple of thousand miles in that condition, drank the fuel though These engines are crap, but i'd try the lambda sensor. Fits disceetly in your pocket when you are at the scap yards If that doesn't work, try bribing your MOT tester I find whisky works well
Pete.
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