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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1 Answer

What can cause the check engine light to be on?


Circuit Range Performance error.

When is the code detected? Malfunction is detected when an excessively low or high voltage from the sensor is sent to ECM. Possible symptoms Engine Light ON (or Service Engine Soon Warning Light) P0121 CHEVROLET Description The throttle position sensor (TPS) responds to the accelerator pedal movement. This sensor is a kind of potentiometer which transforms the throttle position into output voltage, and emits the voltage signal to the Engine Control Module (ECM). In addition, the sensor detects the opening and closing speed of the throttle valve and feeds the voltage signal to the ECM. Idle position of the throttle valve is determined by the ECM receiving the signal from the throttle position sensor. This sensor controls engine operation such as fuel cut. On the other hand, the Wide open and closed throttle position switch, which is built into the throttle position sensor unit, is not used for engine control.

Read more: https://www.autocodes.com/p0121_chevrolet.html


https://www.autocodes.com/p0121_chevrolet.html

chevrolet code was P0121 Google Search

Sep 04, 2017 | Chevrolet Cars & Trucks

1 Answer

Dtc p0121 throttle position (tp) sensor performance


code p 0121 has to answers
1--refers to throttle position (TP) sensor/accelerator pedal position sensor A--range /performance problem====causes --accelerator cable adjustment--TP/APP sensor ---wiring
The second reference is the same and the causes are--accelerator cable adjustment--TP/APP switch
(APP is accelerator pedal position)

Aug 30, 2016 | Cars & Trucks

1 Answer

How to fix p1121 code in dicor 1.4 l disel


P0120 Throttle/Pedal Position Sensor/Switch A -Circuit Malfunction
P0121 Throttle/Pedal Position Sensor/Switch A -Circuit Range/Performance Problem
P0122 Throttle/Pedal Position Sensor/Switch A -Circuit Low Input

,try changing the throttle pedal switch/mechanism on the floor in the cabin

Aug 05, 2014 | Tata Indica Cars & Trucks

2 Answers

What does P0121 mean


its a throttle position sensor, you have an electronic gas pedal not and not a normal cable.type

Jul 09, 2014 | 2002 Kia Spectra

1 Answer

Whats p0121 solution?


code p0121 refers to throttle position sensor(TP) A/ accelerator pedal position (APP) sensor A --range performance problem===causes---accelerator cable adjustment---TP/APP sensor ---wiring
check that the cable is not broken and/ or replace the sensor.

Dec 14, 2013 | Cars & Trucks

1 Answer

My battery died, I replaced it and now I get only Error Codes P0121 and P0573. The vehicle does not act like anything is wrong in either case...Throttle works just fine...and I don't have cruise control....


P0121 is : throttle / pedal position sensor/switch A circuit range/performance problem
P0573 is : cruise control /brake switch A circuit high
first check : there is two switch on brake pedal linkage one for brake light and the second with rubber hose for cruise control
try to push switch toward brake pedal to ajust
tps code P0121 check for wires if they are cut
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Oct 05, 2013 | Pontiac Cars & Trucks

1 Answer

I have a Pontiac Grand Prix GT, 3.8 Liter Motor. Two codes PO108 Map/Baro CKT High Input, and PO121 Throttle/Pedal Position sens A ckt Rng/Perform, according to the scanner. Did I need a Map Sensor and...


Change the throttle sensor first, and see if the map sensor is a victum. throttle sensor is similar to an old volume reostat, on some cars and everything else tries to do react, and everything errors out.... My bet is throttle position sensor... But you never know, it CAN be both, just usually not both.

Feb 18, 2011 | 1997 Pontiac Grand Prix

1 Answer

Just replaced the fuel pump, now we get the code P1544, Mfg. Specific DTC, see service manual, as well as P0121, Throttle pedal position/sensor CKT Ring perform What now??


are you getting fuel now,have you checked fuel pressure?dtc just means it wasn't detected clear that code out,your tps you might need to check voltage,should be between .o5ohms.










TIM

Dec 12, 2010 | 2001 Volkswagen Cabrio

3 Answers

Need to know what the code p0121 is


The code P0121: (TPS) voltage does not agree with (MAP).

Apr 16, 2010 | 2001 Dodge Dakota

2 Answers

P0121


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

The throttle position sensor is probably either damaged, dirty, unplugged, or dead. It's located on the engine. Find the throttle body - the TPS will be the little box on the side of the throttle body - it measures how far open the throttle is, and tells the computer so the computer knows how to direct the car's driving parameters (shift points, fueling, etc).

Jul 29, 2008 | Hyundai Motor 2002 Elantra

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