A/F Ratios

[bentaw]

so is 13 over 1 lean

 

[Feel]

http://www.ross-tech.com/vag-com/cars/fuel-trim.html

 

[bentaw]

thanks phil that gave me a headache when i first read that but after reading it twice it makes good sense

 

[bellautos]

so is 13 over 1 lean

As quoted from pro drive member/worker.

12.9/1 is rich of stoich,
but it is also typically what we call LBT, or lean best torque


If you have 13/1 then the sums are not hard to work out

 

[bentaw]

ok my lambda at idle is showing 0.9 and -7 in the 2 columns logged under 032 on vag com, then once on the motorway the columns read 0.8 and -5.5, what does this mean then.

According to rosstech that means i have slight vacume leak and my MAF is fubard or something else is fubard

 

[wild willy]

ok my lambda at idle is showing 0.9 and -7 in the 2 columns logged under 032 on vag com, then once on the motorway the columns read 0.8 and -5.5, what does this mean then.

According to rosstech that means i have slight vacume leak and my MAF is fubard or something else is fubard

I've logged A/F ratio a number of times and never recorded negetive values.
I think you should only be concerned with the first column only.

 

[wild willy]

bentaw, you have a problem with your motor but you don't seem to be in a hurry to solve it. You may be risking potential damage. There must be another LCR owner in your area who you can swap parts off in an atempt to elliminate.

 

[wild willy]

so is 13 over 1 lean

true only if your statement reference is air.

 

[bentaw]

13 air over 1 fuel you mean yeah