stangnerd
Forum Member
I have many of foxbody in the past and I have never understood why the black soot stain from passengers side tail pipe. I know that is a sign of the engine running rich. But where does the problem come from? The driver side tail pipe is normal no soot near tail pipe at all. I know this could be a number of thing just asking what some of you guys might have done to fix it. I did dial down the fuel pressure from 40 psi Vac off to 37 psi Vac off. Could this be a bad O2 sensor? Well any help would be greatly appreciated
