Quote:
Originally Posted by itschris
Ahh, well good to know you're set there.
No, fuel system status just means warmup (1), closed loop (2), open loop (4). Look at injection mode d4-s, which tells you if you're using PI (1), DI (2), PI + DI (3).
I think you're on the right track. I'm going to backtrack on my previous post, you can probably ignore the O2 sensor.
https://datazap.me/u/jrhudson/some-b...1863-1911-1948
To me it looks like the ECU is trying to lean the mixture out every time the injection mode switches from 3 (PI + DI) to 2 (DI). The pattern continues over the whole log, I just marked a short part. I think this would suggest DI is providing the expected amount of fuel, and PI isn't. At least that's the easier one to inspect?
I'm still confused why injection mode 2 (DI only) at idle maintains the high positive LTFT. Maybe there's something special about idle. Hopefully someone else will chime in.
Edit: Are you sure your stock tune isn't scaled for larger injectors? |
ahhh thanks for the info on injector modes.
Yes, I thought it would be these old PI that might have caused some issues and i don't think the DI will be the issue. I got them cleaned along with the DW700cc PI. But i didn't clean the stock PI since at the time i didn't think i would need them.
LTFT seems to stay high no matter what the injector mode.
I wouldn't know if the stock tune is scaled for larger injectors. i only have the stock PI injectors installed on there and those are the same ones that came from the factory. Would my stock tune be different from other 86/frs/brz?
edit: plan is to drive her like maybe half a mile to see if anything is amiss. Won't likely be going further than that. will report back with any updates.