steves97z28

I have been having a hell of a time getting o2 sims to work in my car. I went for inspection and failed because of bank 2 sensor 2. I thought the harness on the car may have been burned, so to check I switched the working sim from bank 1 sensor 2 to the passenger side. Cleared the codes and went for a ride and the code came back for bank 1 sensor 2. Great its the sim, easy fix. I ordered a brand new sim from thunder racing this week and put it in yesterday. I have not driven it becuase on my autotap there is no activity at all. it just moves from 445mv 450mv. This is a brand new sim and $50 more and it did not do a thing. Does anyone have any idea of what i can do? I want to send the PCM back to Ion to just delete the rear o2's, but I have heard that would cause the monitors to read incomplete. I need my monitors to be complete in order to pass inspection. What I dont get is he deleted my A.I.R. and EGR and both those monitors say ready on the autotap

Guest47904

Check the signal at each side and then swap them and check signal again.

If you need a sim, don't get those expensive ones. Just a get a single 2 channel unit from here http://www.o2sim.com/24803.html for $25.00

steves97z28

I will go back to get inspected tomorrow. Right now according to my autotap i only have to monitors not ready, and i have been told that will pass. If that doesnt work I guess the PCM will go back to Ion for one last try before i put manifolds/cats back on it

Injuneer

If the PCM is showing 450mV, the sim is not connected or has an open circuit. 450mV is the bias voltage the PCM supplies.

steves97z28

hmmm, any suggestions on how to get it to try to fix that. sorry for the thread title

Guest47904

Open connection. Find the break.