colume 1 reading -70 mbar? fuel cut not working properlly

Post by **calvin** » Wed Nov 18, 2009 7:50 am

set column one to 124mbar. disable fuelcut... tune the first column by deceling. re-enable fuelcut. In your dataloggs look where your mbar is when you decel. set your fuelcut mbar a little higher then that point.

ckretvix · Post by **ckretvix** » Wed Nov 18, 2009 12:53 pm

What should the first coloumn AFR's be like?

jpjackson · Post by **jpjackson** » Wed Nov 18, 2009 4:06 pm

on decel i am only making it to -24.4inhg so maybe you want to drop column#1 a little lower. at the moment i am just guessing, my laptop took a shit and i just got this new one and just got ectune working right because it has win 7, so i haven't had a chance to tune any yet, but that is what i set column 1 on my map at. hopefully i will get a chance to do some tuning a little later in the day. if you get a chance let me know how it worked out for you.

2bfi · Post by **2bfi** » Thu Nov 19, 2009 8:00 am

I disabled the fuel cut and while driving around, realized that I wasn't making much use of that feature. The car didn't feel any different. With my current map, 1st column is set quite lean. So, decel at high rpms down to 2500rpm gives 19.9 AFR, which is like free air on a PLX wideband. Below 2500 it's about 15 AFR. When I use the fuel cut feature with a lower rpm threshold, I get bad jerking in slow traffic. Maybe I'm doing something wrong.

jpjackson · Post by **jpjackson** » Thu Nov 19, 2009 10:43 am

after changing colume 1 to -24.2inhg the fuel cut is working better, i just have to do some more tuning. im also going to try what calvin said. so the main thing is tuning