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2000 GMC Yukon 5.3l / PO160 code
Got a code PO160 - inspected the wiring and found Bank 2 sensor 2 harness was loose & hitting the driveline - repaired the wiring - scanned live data & still had no switching from the bank 2/2 sensor - it holds at 430mv - replaced the sensor & still had the same issue - swapped the Bank 1 sensor 2 with B2S2 and the problem followed the new part - got a warranty replacement and the problem still exists. All other sensors are switching properly.
Used Bosch sensors - measured the old sensor & new sensor, both were close, maybe 1 ohm difference.
Have not run into this before, any thoughts?
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02-05-2013, 05:18 PM
