I noticed when I power shifted today (I dnt do often at all)...that my ratio dropped to like 10.4 then slowly rose then backfired or cut out real bad....

So on my AEM air/fuel gauge....goes from 11 to 16 as we all know...is the 10's too rich or too lean??? I would imagine too rich but I dont know thats why im asking...and If 10's are rich then 16's are lean...or is it the opposite??

so I had to lower my boost a little for wot shifting....

anyways my question is on the air/fuels im sure somebody can clear that up for me quick....Im thinking about checking and lowering my gap on my spark plugs again...

 

10 is rich and 16 is lean. the lower the number the less air in athe air to fuel ratio

 

you want it around 11.5 at wot

 

kool thats the way i understood it so thats good....so i see no matter what boost im running i want that to be around 11.5 at wot.....so if its around the 10's i need a lil more air?? lol or less fuel...hmm???

so why does upping the boost make mine run richer instead of leaner??? at least i think thats what it does...

i can be pulling hard at wot in fourth gear and my air/fuels will normally read 12's and 13's i think....i watch it as im flying down the highway and it doesnt go way lean or way rich....but then it backfires or cuts out....(seems to me like it cuts out if i run a high amount of boost for a long duration of time such as fourth gear...) if i run the higher boost through the low gears it wont backfire/cutout unless if i powershift....but everytime it does cutout it shocks me because the air/fuels dont look horrible...and i lower the boost so it doesnt happen again...

so i guess i wanna be in the 11.5 range all the time and not 12's or 13's?? im gonna lower the gap on my spark plugs...

 

All right, fess up, what happened to my baby?????

Dusty

 

LOL i still have it dusty...its still safe for now...
I have it up for sale but if i dont like the offer or the person i wont sell it because half of me wants to keep it...lol
sorry u had to get rid of it...but im glad i got it lol..

 

hey does anyone now what o2 sensor slow response mean or why does it come up in the check engine

 

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sounds like you're hitting fuel cut and those a/f's are WAY too lean. turn your boost DOWN asap.

 

okay so 12's and 13's are way too lean hence why it is cutting out....are 10's too rich?? can it cutout if its too rich as well?