Ok, so Right Bank is drivers side and Bank 1.

I think I got it now. Thanks guys.

 

NO! Left is Driver's side..from Mopar parts manual (4.7 part numbers, they have a pic that shows which side is "left" ie driver's side):

56028998AB Left, Before Catalyst
56028998AB Right, Before Catalyst
56028999AB Left, After Catalyst
56028998AB Right, After Catalyst

 

thats why I said it's good to check because there is no "standard" , it depends on who you ask as to which side of the engine is the left side or right side.

 

That is correct.

 

I was thinking that would make sense, but I wasn't sure. I want to be able to get the proper o2 sensors in the right spots. The only standard I could find on google was cylinder 1 is always in bank 1. Thanks guys.

 

ECU's are funny in how they interpret values. For some reason, the Bosch sensor I had in the race car would oscillation differently than the factory Mitsu sensor. I could see this when logging closed loop operation.

So far, a Bosch didn't work for me in that car, and didn't work for me in the Dak. The interesting part of the argument is that the race car is OBD I and the Dak is OBD II, therefore one cannot not necessarily argue that it is a sensitive OBD II computer.

This Bosch O2 that I had in the Dak would throw two seperate codes, an initial lean code for that sensor, and an emissions code. Typically, Bosch has very good components. Very many guys I race with use Bosch fuel pumps for thier race cars, and other various stuff.

 

take lots of pics of u doing it

 

i thought it was other way around...cause when i had to have an O2 sensor replaced they said the left down stream was acting up i was like what side is that? they told me it ws the passenger side...hmmmm but okay

 

Well Ill do some more research to see how many problems people have with Bosch in Dodges. I have read from a couple of google searches that people have had a code thrown after replacing an o2 with a Bosch, but then it turned out to be a bad EGR or MAP and this was affecting the o2. Hopefully they are returnable if I dont install them on the truck. I can get OEM O2s from an online dealer for $40 more.

 

It looks like Ill be dropping everything after the manifolds to the Y-pipe to replace the O2s. I jacked the truck up Saturday and crawled under there to find that there is no way possible to get to the upstreams. Maybe Ill wait till spring to replace these ....