This one is more of a basic fix, but those Fords don't stay in closed loop well without the right Thermo.

EXHAUST GAS READINGS (Idle)

CO = 00.1% HC = 130 ppm CO2 = 13.3% O2 = 0.1% Nox = 9 ppm

EXHAUST GAS READINGS (Cruise)

CO = 2.5% HC = 135 ppm CO2 = 1... Login to read more.