EFIDynoTuning Forum

When it fires off initially the rpm is at 1500 instead of the commanded 1200, but the weird part is ispibr is right around zero? I’m still fine tuning isc multiplier but it’s pretty close.
It’s starts smooth and does come down to what’s commanded fairly quickly so I’m fine leaving it as is, but curious as to why it’s overshooting right off the bat?

dadrpm adders kick up the commanded idle rpm at startup thats normal

fn82x

I pulled out some fuel in the first 15 secs and it’s brought the initial rpms down much closer to what’s being commanded

thats not good

if you yanked fuel and rpms dropped then that means it wants that fuel

its best to do it the correct way and put the startup enrichment back in and lower the isc multiplier instead

But it’s overshooting the commanded rpm by about 250 for the first 10-15 secs while ispibr is fairly close to zero? My wideband is in warmup mode at this point so I don’t really know what the afr is. I’ve had to pull fuel after 15 secs so I thought it made sense to try it before then too.

No