Hello,

I am looking for some insight on a lean condition, for a 200 Toyota Celica. Code p0171 Fuel system lean code present. 5 gas analyzer shows CO2 at about 14.9%, Co at .1, O2 at 4.5, hc around 25ppm,nox at 0, and an air/fuel ratio of 18.3:1. These are po... Login to read more.