AFR is Leaning down why?

dragon187 · Post by **dragon187** » Thu Jun 10, 2010 1:23 pm

Hallo,
ich have tuned a VW VR6 2,8l supercharged vortech 0,9bar max. boost.
ecu 021906258AF
and have used the Golf_VR6_ecu117_soft529.xdf.

we have tuned the afr perfekt on a highway in gear 3,4 and 5. (Lambda 0,80-0,88)
then we have accelerated in the first gear and the afr was lambda 1 and 1,1 up 4400rpm? also gear 2 about lambda 0,96...

how can i correct this?

Hardware is Ostrich 2.0
Software TunerPro RT

thanks!!

Laimis · Post by **Laimis** » Thu Jun 10, 2010 2:18 pm

Maybe ECU reads lower load area in 1-2nd gear and there is not enough fuel ?

dragon187 · Post by **dragon187** » Sat Jun 12, 2010 1:50 pm

how can i find this fuel map?
must be a per gear fuel map.