Quote:
Originally Posted by Oldmactech
I’m not sure, I marked it simply Rear/Top which in my terms is cylinders 4-6 cylinder head exhaust location. Other would be front /Top being cyl 1-3 head xhaust.
Down below would have been front/bottom, rear bottom. I know technically incorrect but had they not come off would have worked.
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Bank #1 is always the bank with the number 1 cylinder in it. The sensors in front or upstream of the converter are labeled #1 & the rears or downstream are number 2. So the sensor of bank #1, sensor #1 would be the front sensor next to the head. Based on what you said & how I interpreted your locations you have the bank #2, #1 sensor. So a similar sensor should be the upstream #1 bank sensor & the other two should both be downstream sensors.