2009 Yaris

[RobertHog]

Hello I bought a 2009 Yaris Automatic trans with 92,000 miles on it. I am getting Awful MPG.
I think I am getting 21-23MPG in the city and 35+ on the highway.

I so far have.

1. New Sparkplugs
2. New MAF
3. New Injectors (2 were leaking and replaced and 2 were just cleaned.)
4. New Upstream and down stream sensors on the transmission. (These were changed while chasing down an intermittent problem when the transmission would shift odd turned out to be a bad plug on the speed sensor.)
5. Oil change
6. Air filter changed
7. Cleaned PCV valve
8. Flushed radiator
9. I have the Upstream fuel and O2 sensor I need to install still. ( The one upstream from the CAT.)

I could change the coils out if its needed but the car runs very smooth and I think they are ok.

I use the car for Uber eats delivery and was counting on 29MPG to help with my costs.

Dose anyone have any ideas I can try?