I'm in need of technical help as I just started to get 102-3 code on my 2010 550XP. SO I found out where this was located to check wires at plug by wiggling them to see if there's any change in idle which there wasn't. I then disconnected plug and gave both sides a good shot of electronic cleaner and plugged back in. Still everything the same. I then took a better look at the sensor and it appears there should be a screw thru the one ear of the sensor to hold it down.. I have nothing.. Question I have I see theres a metal ring or copper or bronze colored inside both ears. Is this sensor grounded to engine with the hold down screw? Could this be my problem? I don't see a screw listed on parts diagram so not sure I'm even close to the issue. Can these be ohm tested or checked in any manner?
THanks in advance
THanks in advance


