Engine Struggling At Stops. Stalls if giving too much gas. - Toyota Yaris Forums

greenlightning · 06-11-2022, 11:29 AM

So lately, I've noticed that when I'm at a stop or a light, when I try to go again the engine seems to struggle a bit. If you are very gingerly with the gas pedal it seems okay, but if you give it too much gas it seems to stutter and a few times the engine has stalled out. When the car is already in motion, everything works fine though. Acceleration is adequate when moving. It's only when at a complete stop. It's not throwing any codes on the computer so I'm not sure what to look into.

It's a 2007 with 300k miles on it, so it might just be a dying engine? But if there's some ovbious fix that you folks have run into, please enlighten me.

WeeYari · 06-11-2022, 03:43 PM

Has the MAF sensor ever been cleaned?

sh0rtlife · 06-11-2022, 04:04 PM

when was the last time it was given spark plugs?

ex-x-fire · 06-12-2022, 08:50 AM

Weak fuel pump? I'd check fuel pressure.

komichal · 06-13-2022, 01:11 AM

As the more experienced folks already mentioned - dirty MAF sensor and/or spark plugs check/replacement might be the case.
It could be also as easy as clogged (too old) engine air filter. Or throttle body needs cleaning.

There is no such thing as "dying engine" for Toyota. :)

greenlightning · 06-13-2022, 02:21 PM

I also refuse to accept that it's dying. Toyota's usually last forever lol. I'm taking it to a Toyota dealer to do a diagnostic and check these specific things.

06-11-2022, 11:29 AM	#1
greenlightning Drives: 2007 Silver Yaris Sedan Join Date: Jun 2012 Location: New Jersey Posts: 6	Engine Struggling At Stops. Stalls if giving too much gas. So lately, I've noticed that when I'm at a stop or a light, when I try to go again the engine seems to struggle a bit. If you are very gingerly with the gas pedal it seems okay, but if you give it too much gas it seems to stutter and a few times the engine has stalled out. When the car is already in motion, everything works fine though. Acceleration is adequate when moving. It's only when at a complete stop. It's not throwing any codes on the computer so I'm not sure what to look into. It's a 2007 with 300k miles on it, so it might just be a dying engine? But if there's some ovbious fix that you folks have run into, please enlighten me. Last edited by greenlightning; 06-11-2022 at 11:43 AM.

06-11-2022, 03:43 PM	#2
WeeYari View User's Garage Drives: 06 Polar White 5dr, 13 Soul 4u Join Date: Oct 2008 Location: Georgetown, Ontario, Canada Posts: 5,764	Has the MAF sensor ever been cleaned? __________________

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06-11-2022, 04:04 PM	#3
sh0rtlife Drives: 2007 5dr canadian import Join Date: Dec 2016 Location: pacific north WET Posts: 1,025	when was the last time it was given spark plugs?

06-12-2022, 08:50 AM	#4
ex-x-fire Drives: 2010 yaris 3 door hatch Join Date: Jun 2013 Location: Sheboygan Falls, Wi. Posts: 522	Weak fuel pump? I'd check fuel pressure.

06-13-2022, 01:11 AM	#5
komichal View User's Garage Drives: Yaris 2007 1.3 2SZFE 64kW Join Date: May 2012 Location: CZ Posts: 307	As the more experienced folks already mentioned - dirty MAF sensor and/or spark plugs check/replacement might be the case. It could be also as easy as clogged (too old) engine air filter. Or throttle body needs cleaning. There is no such thing as "dying engine" for Toyota. :)

06-13-2022, 02:21 PM	#6
greenlightning Drives: 2007 Silver Yaris Sedan Join Date: Jun 2012 Location: New Jersey Posts: 6	I also refuse to accept that it's dying. Toyota's usually last forever lol. I'm taking it to a Toyota dealer to do a diagnostic and check these specific things.