wot tuning

bbnova · Post by **bbnova** » Sun Aug 02, 2009 9:54 pm

u7194 09 silverado

I logged ltft and got them dialed in, but my afr at wot neede adjustment still. So i adjusted it -4 and -6 like logredux told me to. I took the truck back out and did a wot log and plugged the data in and it told me my ltft's were off 4%. Is this normal? here are my loggs.

bbnova · Post by **bbnova** » Sun Aug 02, 2009 10:05 pm

on a side note, this is using the afr meter that is in the tuner. I have a wideband I could hook up, but how would I use it in an 02 bung that already has a sensor in it? Would I use it after the cat and turn off the 02 sensors, or before the cat?

Post by **06MonteSS** » Mon Aug 03, 2009 8:03 am

when doing a WOT log, you can not check your ltft's.. they will be off, cuz they'll be negative at WOT... with a WOT log, the only thing you want to make sure about the ltft's is that they are 0 or a little negative...

to see if your injector slope is adjusted correctly so that your ltft's are in the 0 to -2 range, you need to do a normal steady driving/cruising log...

what do you have your injector slope set to right now?