luisdm

iTrader: (13)

I have a 80000 miles, 2001 ws6 a4 100shot, the car is running really rich and then lean. It also throws black/grey smoke and bogs out with light throttle but runs perfect in wot. What is the problem O2 sensors?


also what power do you think i have im 5300 elevation?
my guess 450 whp

Thanks Daniel

robram07

I'm having the exact same issue. I just changed the spark plugs and all four on the driver side were black. I'm throwing o2 and egr code. mods are long tubes and code air. has anyone else had this issue, any help would greatly be appreciated