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Old 02-03-2012, 10:51 AM   #12
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Another thing I wonder about is that all the heat shields have been discarded from underneath, is it possible that at cruise throttle, the pipes are cooling off enough to not let the converter burn? After a run, stop and idle and the rear oxygen sensor drops to a flat line, the above graph was part throttle cruise. Normally on my commute I'm running about 1800 rpm 40 or so in 6th gear.
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