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| passed MOT but is my car running lean from emission readings https://www.fiesta-si.com/forums/viewtopic.php?f=4&t=12080 |
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| Author: | Fezzyzetec [ Wed Jul 09, 2008 6:40 pm ] |
| Post subject: | passed MOT but is my car running lean from emission readings |
might be a daft question but the CO reading on me car was 0.00 <0.20% the HC was 29 <200ppm the lambda was 1.000 for MOT it has to be between 0.97 - 1.03 natural idle test was engine speed 450 - 1500 0.43 CO <0.30% AND WAS 0.43 some help would be great cheers |
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| Author: | happypaul [ Thu Jul 10, 2008 11:11 pm ] |
| Post subject: | Re: passed MOT but is my car running lean from emission readings |
If its passed within the limits of the MOT then clearly its okay? You have a modded car, its not going to be perfect |
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| Author: | fonfe [ Fri Jul 11, 2008 6:11 pm ] |
| Post subject: | Re: passed MOT but is my car running lean from emission readings |
if its a zetec check the vacume pipe that come out of the side of the head down the back of the coilpack, its meant to go to a tube that goes to the crankcase breather. if this has a hole in it it will lean the engine out. if its not zetec then i dont know im afraid, unless its carb'd |
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