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okay, i hit it with a code reader today......no codes. another oddity is that even though i'm using the RoW program which should only monitor two O2 sensors, i'm getting readings from all four.....
so, here are some numbers at idle:
MAF: 0.95
Ign Adv: 12deg
Fuel Sys 1 & 2: closed
ST Ftrm 11: -11.7%
ST Ftrm 21: 9.4%
the symptoms are a lumpy idle and a very fuel-rich exhaust with some smoke. from the numbers above, it seems that one bank is rich & one is lean.....
i will work on prepping a diagnostic plan tomorrow. in the meantime, any ideas are welcome! as a first order of business, i will check to see if the small oil leak from the area of the #1 spark plug tube is somehow related.
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