Question about 2000 Hyundai Elantra

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2002 sonata code P0121 throttle/pedal position sensor A CKT RNG

Last word on top perform we replaced the throttle/position sensor still not working right someone said i should also replace the mass airflow sensor. husband has not worked for last two wks i only worked 6 days in last month only have enough money to either diagnose problem, or buy correct part and fix problem so i can continue to work, PLZ,PLZ,PLZ, SOMEONE PLZ, HELP ME

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You need to check the wiring between the ECM/PCM/ECU and the sensor to ensure the sensor is getting the voltage that it should be as well as the voltage it should be putting out. Also check the sensor itself you may have bought a bad sensor. Good luck to you. Thanks for using FixYa!

Sincerely,

JC

Posted on Jan 03, 2009

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Posted on Jan 02, 2017

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P0121


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