A couple of things:
I don’t have fuel trims on in my logs but I don’t think they should be nearly at -100 all the time like that. It seems like you are over fueled. What are your mods? Stock ECU/tune/fuel system?
- Is the car fully warmed up? Coolant temp of less than 170 seems low… do you have a different thermostat or something? Should be around 190. May not be impacting anything but not sure what the threshold is to go into closed loop.
- The o2 sensors you have shown are the correct ones… not sure why you aren’t getting data from bank 1 sensor 1. Could be a wiring issue or issue with the O2. Do all your datalogs not have data for that now?
- In the first log at 3k rpm, the bank 2 sensor shows you are basically fully rich (O2 sensor voltage near 1). This could potentially be because your bank 1 sensor has an issue, so the ECU is not using closed loop at all to cycle around 14.7 AFR. This would definitely result in high hydrocarbon emissions.
- In the 2nd log at idle, you still don’t have data for O2 in bank 1, but at least bank 2 sensor is doing what it should – when the ECU is in closed loop using the O2 to target 14.7 AFR, you should see the voltages cycling like that (from low to high, trying to get to 0.5). However, I know from when I had an issue with one of my O2s, I would not be anywhere close to 14.7 AFR with only one O2 working. You need both working properly. This is important for emissions. It would not however affect high load/boost driving because you are not using the NBO2s at all (as it is in open loop).
- You are getting knock readouts… its just zero. This is good. There is no such thing as “good” knock. If you see knock, you have an issue, especially if it occurs under boost.
I don’t have fuel trims on in my logs but I don’t think they should be nearly at -100 all the time like that. It seems like you are over fueled. What are your mods? Stock ECU/tune/fuel system?