pulled the sensors today, left bank looks good, fairly new japanese sagem sensor
very liitle residue , looked clean. Right Bank However was showing lots of white residue, signs of a lean mix, the sensor itself, is an Old lucas nkt , possibly an original. i cleaned them up for now but will replace the right bank, testing the voltage output it was low, signifying a Rich Mix ,and thus the ecu is fully leaning out the mix. even with the injectors opening for the shortest possible interval the ecu is still getting a "rich" sign from the failed sensor on the right bank. this is where my lean mis at idle on the right bank is coming from. and where the lean residue on the plugs and 02 sensor is coming from. i'll try your advise on the the part source thanks. i think i only need the one. by the way these are super easy to get at and replace.
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