jenkizenki

my solution for future googlers, ensure you have a 3D injector dead time table if you are running a vacuum line to your FPR, if not, keep using the 2D injector dead time table with the FPR vacuum port OFF (only if you're naturally aspirated) to use the base fuel pressure you set (43.5psi) The oscillation issue can be due to the closed loop gain control table having too high of values, making it too sensitive, and overcorrecting too fast.

(I am still learning efi tuning) I am having this weird close loop correction oscillation issue, and I was wondering what could be causing it? In this log, my VE value for idle (1000rpm) is about 42%, with an idle air control valve base position of 47. Seems to run well, but I'm wondering if this issue is caused by incorrect injector dead times, or too high of closed loop gain values? It even does it on light throttle when accelerating as you can see.

Yeah, it is NA. It's a VH45DE. Thanks for the feedback! Can you explain why I should run the values posted? I am curious to understand in what ways it benefits the engine. I'm sure my values are rich, and possibly even too rich

I am new to tuning, and I am trying to create a target AFR table using MGP as the load axis. I am wanting to use 14.0 for stoich due to pump gas usually containing 10% ethanol, and I would like to run on the richer sides of things as my first tune. I am wondering if I have the MGP x-axis set up correctly, and if this AFR target table would be suitable. Thanks in advance