petrol mixture

[roofdoctor]

i have a ford sierra 2.0l gls fuel injection twin cam, when it passed its mot the mechanic said it was running a rich fuel mixture, how do you reset this ?

[Gef]

This is probably a stupid answer but, surely the mechanic would know how to solve it.

[quattro]

Take it to an engine tune shop they should be able to sort it but it can't be much of a problem or it would'nt have passed it's MOT

[kalel1975]

Tell us more about the type of fuel system used and the year of the car and I might be able to help. I'm presuming this car hasn't got a cat. so if it passed the Mot it must have a C.O. content of less than 3.5 percent.The car probably has an air flow meter on it. This is located near the air filter. It will have an allen key, air bye-pass screw near this. This needs to be turned to adjust the fuel mixture. Don't know which way, can't remember! It needs to be put on an emmisions machine to set it up. It's no good just guessing. If it has a different fuel system on it, it will all be different.Some have electronic C.O. (carbon monoxide)adjusters.We need more info to tell you more. Easiest thing to do would be to have it tuned at a garage of your choice.

[fraserjim]

Kalel 1975 This answer must be Swaheely to this guy -system cat. Mot C.O. content of less than 3.5 percent. air flow meter air filter. allen key, air bye-pass screw . emmisions machine fuel system electronic C.O. (carbon monoxide)adjusters. Easiest thing to do would be to have it tuned at a garage of your choice. He's already in the bloody garage

[kalel1975]

My answer may be swaheely....but the question was asked, and I answered.Anyway, how'd you know the roofdoctor is already in a garage? If he is, it was nice of them to lend him a computer to type out his question!!