Engine Low power

2011 TOYOTA PRIUS
122,900 MILES • 4 CYL • 2WD • AUTOMATIC
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STELLA HERMAN-MATA
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  • 1 POST
all warning lights are on. can drive car, i already changed the 12V battery per one mechanic. when taking off from a stop or going up hill the car starts loosing power until i get to the top then it picks up speed. i notice i am running on gas only because i waste more gas per week. any ideas what is wrong? it has no problem starting or driving it just do not have the power the car is still running the same way even after buying and replacing the new battery.
Apr 15, 2017 at 3:20 PM
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STRAILER
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Hello,

It sounds like you have a plugged catalytic converter, Here is a guide so you can test it to see if I'm correct.

https://www.2carpros.com/articles/how-to-test-a-catalytic-converter

Please run this test and get back to us so we can continue helping you.

Best, Ken

Apr 17, 2017 at 4:35 PM
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STEVE W.
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  • 15,113 POSTS
What is the display saying as far as the battery system providing power? It sounds like you may have a controller failure that is making it run only on gas. For that you need a good shop or dealer who knows the hybrid drive system. Not an uncommon failure on the Prius.
Apr 19, 2017 at 9:35 PM
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