Car almost stalls when depressing clutch

[futureal33]

Hello,

I'm having a problem on my JDM DC5 when I press the clutch and let the engine rpm drop to idle, it is going past idle and almost stalling, then it sort of yo-yo's back up and down. Sometimes it will completely stall... othertimes it will just keep going, but the engine rpm can drop well below idle.

Map and Log attached

I have tried to adjust the iACV up and down and going down did seem to help a bit, but didnt fully cure the issue

Another thought was that it could be my fuel table, as when it almost stalls the S.Trim goes crazy and tries to take away a load of fuel?

[Spunkster]

Do you have a lightened flywheel?

[futureal33]

No, OEM flywheel. Brand new clutch fitted just yesterday

[Spunkster]

Was it doing this prior to installing the clutch?

[futureal33]

It's hard to say because the Kpro was installed at the same time. I'd say it is map related though as fueling changes have made it worse

[Spunkster]

It sounds like it needs to be properly tuned on the dyno.

[jdouille]

I have same problem After mapping, not all time
When i press thé clutch, engine RPM down very fast.
Same problem with iacv ans not iacv well it's not problem.

[Spunkster]

Same problem with iacv ans not iacv well it's not problem.

I'm not quite sure what you mean.