Ok this morning car start car drove and afr was 14.7 and 15s cruising, when in boost AEM wideband afr reads lean with one red bar and off chart...I tried loading map still same, the car still run perfect. I check for vac leaks cant find any. anybody have suggestion why my wideband reading superlean in boost...

 

what kit, injectors and tune u got?

 

no.. you should turn ur car off. and stop driving it!

check ur wideband make sure its working. if it is.. do not hit boost

 

greddy turbo kit 550 injectors greddy emu unit tuned and driving for 1 year

 

I check wideband everything look fine only when in boost just super lean

 

colder weather can have a fairly large impact on tune...that may not be the only thing but its something to look into exp if you were tuned during the summer. small vac leaks can do it as well. large vac leaks tend to mess with the maf so much that it just goes all wiered on ya.

im banking on the issue to be more than one thing.

 

try to reset your ecu, cuz closed lopp fuel trims like to find their way into open loop and well if u have a -20 fueltrim well yea...

 

also speaking if your using the emanage blue count that as the problem cuz it tuned off the maf and well now that its colder readings are different

 

exhaust leak is a very likely culprit as well

 

so many factors

 

I drove last winter it was fine and i was tune in summer.

 

Chances are if its reading lean in boost, your actually lean in boost. Add fuel if you tune yourself, until you find the problem (if there is one)

 

Did that still same

 

BUY A HONDA!

 

get a hatchy a gsr swap 75 shot. call it a day

 

x2

 

Usually lean or rich condition set off my cel like before but this time it didnt Im think the wideband could be going bad I just got it this year..

 

Bro you drive an XA, what are you doing in the tc forums

 

except for this part, i beat one with same setup when i wa sjust on 4.8psi and open downpipe haha, and no it wasnt a driver mod issue

 

I snack on Honda