Running lean after supercharger and tune

Basicguy3 said:

Alrighty, I finally had some free time to dig in.
O2 sensor - I disconnected it and thought I had unchecked the box a while back. I just went in to make sure and the tune I’ve been running has had the box checked this whole time. Just no O2 sensor connected. What are the implications with this?

Map sensor - disconnecting it seems to make a big difference, not sure if it’s a good or bad difference though. AFR’s goes from a range of 13.5-15.25 down to low 10’s at idle when unplugged. What do I have to tweak to bring idle afr’s back to where they should be with the map sensor disconnected? Should I drop my F-L switch table to 0 across the board?

I’m also wondering if my tps is offset slightly and I’m wondering if I did it incorrectly. My idle is currently set by set screw and I got 0.601 volts on the iscv test with the set screw putting my idle at 700rpm roughly.

Click to expand...

r3badboy said:

With the O2 sensor unchecked you don't have to unplug it. When you uncheck O2 you need save tune & re flash ecu.

Click to expand...

Basicguy3 said:

Alrighty, I finally had some free time to dig in.
O2 sensor - I disconnected it and thought I had unchecked the box a while back. I just went in to make sure and the tune I’ve been running has had the box checked this whole time. Just no O2 sensor connected. What are the implications with this?

Map sensor - disconnecting it seems to make a big difference, not sure if it’s a good or bad difference though. AFR’s goes from a range of 13.5-15.25 down to low 10’s at idle when unplugged. What do I have to tweak to bring idle afr’s back to where they should be with the map sensor disconnected? Should I drop my F-L switch table to 0 across the board?

I’m also wondering if my tps is offset slightly and I’m wondering if I did it incorrectly. My idle is currently set by set screw and I got 0.601 volts on the iscv test with the set screw putting my idle at 700rpm roughly.

Click to expand...