1996 Fleetwood hearse
Hey everybody. A while back I had a post on P0401 and P0430 codes and changing the oxygen sensors on my 96 Fleetwood with the 5.7. While I was looking under the car I found an unconnected yellow wire near where the upstream oxygen sensor plugs in on the passenger side of the vehicle. I believe I know where that yellow wire connects now. While trying to change the catalytic converters ( didn't go as planned as I was shipped the wrong one or something like that) I had pulled the passenger side off and noticed a sensor screwed into the block between cylinders 2 and 3. It is just below and between the spark plugs and is busted but not leaking. Does anyone know what sensor that is so I can replace it? I was thinking oil pressure or low oil but that is not the location for them. Anybody got any ideas?