I noticed my LC-1 response time is set to "instant" and AFR's are always bouncing. It's hard to tune by hand a single cell on the map since the AFR is constantly moving up and down with the exhaust pulses.




Maybe slowing down the response speed on the LC-1 can make autotune to work better.

any thoughts?

 

do you have it wired in via serial or analog?

 

serial.

Does the serial output use the same setting as the analogs?

 

HOw much is it bouncing? I would imagine at idle there might be some of that, but at 2000-3000 it should be steady within a +/-.1

 

+- 0.8 at idle, boost, cruise (very fast oscillation)

Maybe I'm the only one with this problem. I purchased a replacement v-band clamp for my downpipe to be sure that is not an exhaust leak.

 

you are DEFINITELY not the only one with this problem. mine does the same thing. Sometimes it runs great with no bouncing, sometimes its like crazy

 

... I've never had this before. I wonder whats different?? You could try setting the sampling back a little bit to average it, but you may sample it when its on the low side.