PS idle valve looks like it's staying really steady during that oscillation. Most likely a fueling issue, ego's all over the place too.

Thanks for the pointers! I did a warm up using open loop idle & did some tinkering to the idle warm up duty map & tinkered with the main VE map around idle. After just one round of warm up tuning, I've cleaned up the osculation a lot. I'm only getting ~3 wobbles after a throttle blip now before CLI stabilizes it. I think a couple more warm up sessions like that are going to make a big difference.

I forgot to dial open my mechanical idle valve after swapping in the new motor. After setting mechanical idle at ~700rpm, dialing in open loop warm up idle, and setting and locking out the idle area of the veal map, closed loop idle is all good to go again. Just been a while since I had to go back the basics.

Cutting out the cancer.
https://cimg7.ibsrv.net/gimg/www.mia...17eea62dfe.jpg


FYI, the mslabs CAN O2 module fits real nice above a ms3pro mounted on a singular mounting bracket on 1.6 cars. Tucks right in & fits under the ECU cover plate.
https://cimg8.ibsrv.net/gimg/www.mia...eae3ed9356.jpg

Fired up first time! So excited to switch from innovate to AEM & CAN.

https://cimg9.ibsrv.net/gimg/www.mia...8fc568585e.jpg