Sheng

I am trying to figure out a fluctuating idle issue with 01 s2000 with kPro V4.

I've attached the datalog for the s2000. The idle is high at 2k, and will fluctuate between 1-2k repeatedly, when i turn on the AC it'll stop the fluctuating, but idle will remain high at 2k rpm. Any help would be appreciated.

I've attached the basemap i'm using as well as the datalog showing the fluctuations.

https://drive.google.com/open?id=1eM...WRknEP3H8NQyWl
https://drive.google.com/open?id=1qs...BlNqOJxTkHsiNi

Thanks,
Sheng

flanders

For some reason you are dropping out of closed loop, this is when your fluctuations occurs.
Is your MAP sensor scaled correctly? I see you don't use the stock one, but if you still got that one might try to swap it in.
Getting a wideband installed to see more what's going on would really help as well.
Intake temps seems very high also, is that reading correct?

Sheng

flanders

Yes judging by your fuel trims for sure it needs to be tuned.

AP1Chief

Your TPS is also not setup correct... which could be why its falling in and out of idle/closed loop

flanders

What's wrong with the TPS setup?
It's reading 0% almost all the time even though it's switching between open/closed loop so doesn't seem to be the problem.
Sheng: I'm guessing you did touch the throttle a few times during the log?

AP1Chief

I know on V2 you dont want 0 it confuses it, i keep mine between 1.2 and 1.8 close and 98-99.5 open, just an idea... i havent had alot a time on Kpro though.

flanders

When you calibrate your TPS (which you should) in the parameter settings you will always get 0-100%
So not a problem on Kpro

Sheng

I forgot to plug a vacuum hose

noodels

How gay is that !!