wideband A/F ratio gauges

[lanxter]

can anyone give me some more inforamtion on these?

i understand that they tell you your A/F ratio but how do you know what A/F to set it at and at what point?.

for example im told the A/F should go from lean to rich when coming on boost is this correct? how do you know its not running too rich or if its running lean?

many thanks
mark

 

[Kelly]

dont really understand the question but we have an AEM wideband in the gt, an essential to make sure your car is running correctly. When our exhaust was dying we could see the readings on the AF were too rich.
i believe boosting it should be a "safe lean" i know ours reads low 11's when accerating hard!

 

[lanxter]

cheers for that kelly.

sorry my question probably didnt make sense had had a hard day.

what i was wanting to know is how do you know how much to adjust the fuel say for instance the gauge says you are running rich?

also whats the perfect ratio it should be