Jeff's DIY turbo build

[06YarisRS]

Looks awesome, Jeff! I have the same Prosport boost gauge. I have been driving my car almost daily and other than the long cranking in warm weather, the driving is near perfect. I think my stock ECU has adjusted out the fuel tables and I get no bucking or hesitation with any throttle position, load or rpm. Transition to boost used to be an issue, and then I would adjust the fuel table or O2 table and the hesitation would just move to a different area of the. Now it's smooth as silk. Not touching anything, making any tweaks for a period of time and it's never worked better. I get a nice rich AFR under moderate to full pedal and partial boost is in the high 12s with my w/m injection, so safe IMO. Have you tried tightening your wastegate? I was stuck at around 5 psi for a long time, until I tightened up the actuator arm. I did it twice. The first time, IIRC, I went from 5 psi to around 6.5; the second adjustment netted around 7.5 to 8 psi. Good luck with your future adjustments. I look forward to hearing about them! How do you like your aftermarket head unit? What OS is it? I doesn't look like Android.