P0121 Hyundai -2003

Question

getting codes po121 and code po304 i chanded the coil pack system and plug wires and now the tps sensor still comes come back

Answer 1

Hi there

This would usually mean you have a wiring issue from the TPS to the computer. Recheck the connection at the TPS and if it looks good, check the wiring all the way to the computer.

P0121 HYUNDAI - Throttle/Pedal Position Sensor/Switch 'A' Circuit Range/Performance

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