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The idea someone suggested is not gasoline contaminated with oil but oil contaminated with gasoline due to blowby and thus emitting though the pcv valve into the air intake and back to the engine. The oil does indeed smell like gas. With my driving pattern the oil doesn't heat to the normal temps where the contaminating gas would evaporate. Does that make sense?
In regards to AFR sensor waveforms. I have a readout called Air Fuel Ratio (measured). Would that be basically the converted voltage? I could graph that with the software (Torque on Android can graph directly or can I log the data and graph in, say, Excel). Although, the AFR readouts seem to be 14.7 with small and quick oscillations except 18 on decel. So it would give me 2 nearly straight lines. Also, I can't quite understand, how, the sensor accuracy can be verified without an independent measuring device? Ultimately, unless I misunderstand something, throwing another sensor in and looking at trims is the only true test?
We do use ethanol fuel. It memory serves it's up to 15%.
Last edited by SpaceSputnik; 01-31-2012 at 08:44 PM.
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