Replacing the speed sensor to pass smog

Tiny
CALICUTIE
  • MEMBER
  • 2002 KIA OPTIMA
  • AUTOMATIC
Do I need to buy any other parts besides the input and output speed sensor for it to pass smog?
The Pedometer malfunctions as well.
Friday, June 13th, 2014 AT 8:34 PM

1 Reply

Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
To rectify a problem, you need to find out what is wrong and the causes. Replacing components without knowing if it is the cause don't resolve problems. If the speedometer is not working, it could be a sensor or its wiring circuit.
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Saturday, June 14th, 2014 AT 11:13 AM

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