My 86 just back from a fresh rebuild. Runs great. Steady as a rock and smooth as a baby's behind. But I noticed light smoking evenly from both tailpipes(whitish and smelling like exhaust, not water or oil I think, nothing dripping)) Smoke increases if I step on the throttle in neutral but not apparent when driving. All scanmaster readings are normal except I noticed that O2 reading at idle doesn't fluctuate but stays steady at 875. O2 normal at cruise and WOT. I have the turbo tweak chip. Tail pipe is sooty. Just running too rich at idle? What would cause this? Engine now has about 300-400 miles since rebuild.
Thanks for your input.
Thanks for your input.