quick question... my zzp pcm is running crazy rich... if im at wot and shifting around 6800 a get a nice big cloud of exhaust between each wot shift. i have no engine codes or anything. could it be the gap in my spark plpugs? or actually the tune that is running it that rich that all of the gas isnt igniting

 

It's only rich between shifts?

Do you have a wideband or log of a WOT pull?

 

after i put the full s2 in and had the crank position or w.e. relearned with hp tuners... we did a few WOT pulls data logged... my guy said everything is fine. not lean nor too rich. however this was 2 months ago. he said i only had a slight knock which was probably from my ingalls since there on the tightest setting and the knock only happened between shifts. maybe we should log again and see what he a/f ratios are?

 

do you have a wideband? how did your tuner know rich or lean?

 

data logging + u can smell the exhaust fumes...

 

i really hope your not being serious!

 

i am "the guy" who did his case relearn for him and just logged a quick roll around the block. He is correct in saying there was some slight knock between shifts but as far as the being rich situation I never said anything about a/f ratio and what it was.

 

and the afr was?!?!?!

 

I have no idea what his a/f ratios are he doesn't have a wideband his ltft weren't to bad from what I remeber but I have no idea what they were at wot

 

did 2 WOT runs hooked up to a hp tuner, 1st run 2nd gear coolant temp 194, 40-?? top of second shifting at 6800-6900 rpm. 11.7, second run, 2nd gear 35-?? shifting at 7000 at WOT. 11.8 coolant temp 178... is that better information?

 

that's commanded AF but actual can be different.

 

i understand, im going to try and borrow my friends wideband i guess and get a ACCURATE reading. thank you eric for explaining the difference lol. ummm ill get back to ya guys this weekend. and thanks again zzp for the quick responses def.