Car running lean
Thread Starter
Cruising
Joined: May 2008
Posts: 14
Likes: 0
Car running lean
Looking for some input to as why the car is running so lean,under boost the fuel air is reading 14.5 have checked the fuel preasure,changed the alki pump,we have played with the tables and fattened up still no change.The car makes over 900rwhp,and i am confused.Looking for some help.
Tech Contributor
Joined: Apr 2007
Posts: 10,924
Likes: 78
From: Forney Texas
What kind of wideband do you have? I have seen plenty of widebands read wrong when they go bad. Do you have logging capability? If so, what's your injector pulse width in the higher RPM's? What are your narrowbands showing at WOT? Any knock? Did it ever run proper AFR's up top? If your fuel pressure is good and it all of the sudden changed, the wideband is suspect IMO.
