Feels like the car is not shifting properly

2003 HYUNDAI TIBURON
145,000 MILES • 2.7L • 6 CYL • TURBO • AUTOMATIC
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LOCKE273
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I scanned my car with a OBD2 sensor i bought at a local Walmart. i am no car guy so i am figuring it out as i go but hit a roadblock. When i am driving my car it is not shifting properly and does not want to go over forty mph. The Error codes i got on my O2 scanner where for the camshaft sensor and the throttle position sensor. I replaced the throttle position sensor and still have the issue. It idles higher than normal as well even after it warms up. If there is anything else i need to provide to help find some answer just ask and I will go get it. i am just trying to get my baby running smooth again.

Much thanks to those who take the time to read.
May 21, 2017 at 1:43 PM
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STRAILER
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Hello,

If the catalytic converter is partially plugged it will cause the problem you are describing. Here is a guide to help you test if this could be the problem.

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.

Cheers, Ken



May 24, 2017 at 1:17 PM