2009 Yaris - Toyota Yaris Forums

RobertHog · 07-15-2022, 06:28 PM

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?

bronsin · 07-15-2022, 09:20 PM

Is the check engine light on?

sh0rtlife · 07-16-2022, 12:32 AM

or are there any codes left after being cleared.....

RobertHog · 07-16-2022, 03:39 AM

There are no codes and the check engine light is off. I do have a monitor that is plugged into the Port so I can see Engine temp and RPM's. The Monitor has a Data stream I can access is there any important data I can get from it to share with you all?

I averaged 23.5 tonight going 90 miles with about 20% of those miles being freeway.

RobertHog · 07-16-2022, 03:56 AM

I also had the rear brakes done but I don't think they are dragging because I seem to coast well and I do not hear any dragging sound.

IndestructibleYaris · 06-07-2023, 02:09 AM

diagnostics? Diag ability?

Vanceleroxy · 01-16-2024, 04:14 AM

Have you considered checking the tire pressure and wheel alignment to ensure optimal fuel efficiency?

Perunres · 01-28-2024, 12:59 AM

Have you checked the tire pressure and wheel alignment to ensure optimal fuel efficiency for your 2009 Yaris?

07-15-2022, 06:28 PM	#1
RobertHog Drives: 2009 Yaris Hatchback Join Date: Jul 2022 Location: Arizona Posts: 3	2009 Yaris 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?

07-15-2022, 09:20 PM	#2
bronsin Drives: 2009 Base Hatch 2 Dr Auto Join Date: Dec 2008 Location: nj Posts: 4,790	Is the check engine light on? __________________ Synthetic Oil: Its All In Your Head

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
NEWS: TOYOTA REVEALS ALL-NEW YARIS SEDAN AT 2006 LOS ANGELES AUTO SHOW	VitzBoy	General Yaris / Vitz Discussion	7	09-20-2023 07:50 AM
2009 Yaris sedan problems	BennyLava	DIY / Maintenance / Service	5	12-26-2020 05:14 PM
Yaris 2 D4D 2009 without AC serpentine belt	rasyaya	DIY / Maintenance / Service	6	07-17-2014 09:02 AM
2009 Yaris and wind sailing	GrayYaris	Wheels, Tires and Suspension Forum sponsored by The Tire Rack	16	10-26-2013 07:52 PM
August 2009 - DFW Yaris Yak	SaerinRhoe	Southwest	55	08-19-2009 11:55 AM

07-16-2022, 12:32 AM	#3
sh0rtlife Drives: 2007 5dr canadian import Join Date: Dec 2016 Location: pacific north WET Posts: 1,025	or are there any codes left after being cleared.....

07-16-2022, 03:39 AM	#4
RobertHog Drives: 2009 Yaris Hatchback Join Date: Jul 2022 Location: Arizona Posts: 3	There are no codes and the check engine light is off. I do have a monitor that is plugged into the Port so I can see Engine temp and RPM's. The Monitor has a Data stream I can access is there any important data I can get from it to share with you all? I averaged 23.5 tonight going 90 miles with about 20% of those miles being freeway.

07-16-2022, 03:56 AM	#5
RobertHog Drives: 2009 Yaris Hatchback Join Date: Jul 2022 Location: Arizona Posts: 3	I also had the rear brakes done but I don't think they are dragging because I seem to coast well and I do not hear any dragging sound.

06-07-2023, 02:09 AM	#6
IndestructibleYaris Drives: 2007 Toyota Yaris Sedan Join Date: Feb 2019 Location: Harrisburg, PA Posts: 149	diagnostics? Diag ability?

01-16-2024, 04:14 AM	#7
Vanceleroxy I've made a post! Drives: Man Join Date: Jan 2024 Location: Edgewater Park NJ Posts: 1	Have you considered checking the tire pressure and wheel alignment to ensure optimal fuel efficiency?

01-28-2024, 12:59 AM	#8
Perunres I've made a post! Drives: Man Join Date: Jan 2024 Location: Pinckney, Michigan Posts: 1	Have you checked the tire pressure and wheel alignment to ensure optimal fuel efficiency for your 2009 Yaris?