I'm fairly new to this but have read and learned a lot. I have recently changed to a boost reference fuel pressure regulator and changed out the injectors to a split pattern (still 60lbs) and I'm trying to get a good tune. I've set up the tune file for VE scanning (disabling MAF, etc.) then run a scan and the errors are all over the place. Really high in one cell and very low in the next cell. So I multiply the data back in by half, I run it again and it still wants more, and run it again and now it's way too much. Back and forth I go chasing my tail. The VE table is has some terrible spikes in it now after starting with a fairly smooth table. I just can't seem to make it happy, especially low RPM/low MAP.
Using a AEM wideband via serial.
Step 24 Scan.hpl
dynoday w_OEM Torque SD Step 24 VE Tuning Setup.hpt