My starter went on about two weeks ago. I dropped the exhaust off the right bank to get the starter out, bolted it back up and then took it for a test drive. As soon as it got back up to the correct temp the check engine light came on and it started to idle super rough. It turns out that there's some type of leak in the manifold but i can't tell where. The right bank sensor's readings are all over the place, causing that side to run incorrectly. The readings go from 0 to 800 (I don't know the units of measurement) whereas the left bank, which is running correctly stays at about 400. Would oxygen sensor simulators correct this problem?

 

The one that's staying around 400 is the one that's messed up. They're supposed to swing like the right bank on yours is doing.

 

Well with that being covered, how do simulators work?

 

O2 "sims" are only used in OBD-II setups, for the after-cat O2 sensor positions. They can not be used to replace the pre-cat sensors in either OBD-I or -II.

You might want to add a "signature", with basic info about your car... year in particular, since not all LT1's are the same.