Question about 2000 Toyota Avalon

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What is the TPS? I assume it is a sensor but for what?

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The TPS is the Throttle Position Sensor. When you press down on the gas pedal, the TPS measures, or senses the throttle opening and sends a voltage signal to the engine computer. The computer uses that information to adjust the amount of fuel going through the injectors. Not a very technical description, but you get the idea.

Posted on Jan 03, 2011

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Hello pfossler.

A TPS is a Throttle Position Sensor. They are mounted at the end of the throttle shaft.
Essentially it is like a volume control, the more throttle applied the more the signal to the computer.
The TPS is only a part of the total of information needed for fuel control but it is essential.
I hope this helps you out.

Thank you for using FixYa.

Posted on Jan 03, 2011

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Throttle Positioning Sensor

Posted on Jan 03, 2011

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I have a"01"dodge ram w/ a 5.9 diesel, after running on the freeway the idle will stay up at about 12-1300rpms when i come to a stop. shut off and wait about 5 sec. restart and idle returns to normal.

This problem could stem from a few different issues and is difficult to diagnose simply from your description of the symptoms. Assuming that you are not noticing any excessive smoke in the exhaust, not burning any oil, not seeing compression in your cooling system, and do not have any "tuners" on your engine; I would suspect that either the thottle cable running from the pedal to the TPS (throttle position sensor) is sticking, or that the TPS is defective. The TPS is located under a plastic cover at the left front corner of the engine. Disconnect the cable and make sure that it slides freely back and forth. Also make sure the TPS arm moves freely through the full length of travel. If both of these components work correctly, and there are no other symptoms, I would assume the TPS is bad. Hope this helps.

Oct 19, 2014 | 2001 Dodge Ram 2500 Truck

1 Answer

Where is the tps located?

TPS means Throttle Plate Position sensor. It is installed on electronic fuel injection engines produced after 1996. TPS is attached to the side of the throttle body which converts the mechanical movement of the accelerator pedal to electronic signals. After receiving the signals from TPS. the Electronic Control Module (ECM) assumes, how much accelerator pedal is depressed by the driver and so it adjust the on time of the fuel injectors to deliver the metered quantity of the fuel to each cylinder and to adjust the ignition timing as well.

May 22, 2013 | 1990 Honda Civic

1 Answer

Where is the TPS located on 2006 F150

I assume you have a 5.4 liter?

Follow the throttle cable to the throttle body. Look on the opposite side of the throttle body from where the cable attaches. Thats the throttle position sensor.

I’m happy to assist further over the phone at

Nov 30, 2012 | 2006 Ford F-150

1 Answer

How to idol down a 4.3 v 6 throttle body motor in a 1993 chevy astro mini van.

Sometimes a car idles high because the mass airflow sensor doesnt work and then the throttle sensor assumes a default position of wide open. Maf, Map, and tps are connected.

Nov 05, 2012 | Cars & Trucks

1 Answer

Put a lt1 engine in 1994 caprice it skips and wont hardly go up hills and back fires

Hello! are you using the harness for that year LT1? the fuel air mixture is controled by the Manifold Absolute Pressure (MAP) sensor, the Throttle Positioning (TPS) sensor and the Oxygen sensors...When you put your foot in it without O2 sensors there isn't any control over fuel/air mix and ignition advance if the MAP and TPS aren't connected...I'm assuming your using the LT1 ECM...Guru...saailer

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May 03, 2012 | 1994 Chevrolet Caprice Classic

1 Answer

How do i adjust the TPS voltage on my 1989 buick Lesabre

your talking voltage so i will assume you know how to use a voltmeter and how to check tps voltage.with the voltmeter connected if you loosen the sensor screws you can move the sensor a little maybe enough to lower the sensor voltage.some of these are not adjustable.

Sep 08, 2011 | Buick LeSabre Cars & Trucks

1 Answer

I have a light on the dash as a lightning owners manual indicates electronic throttle control. I this the same as the throttle position sensor?

(ETC) Throttle Control---is the motor, in the Throttle Body,the TPS Sensor,is a replaceable item in it also.

The entire throttle body, is some very serious money,so don't assume it is bad.

Clean the Throttle with CRC Throttle Body Cleaner
Clean the MAF Sensor with CRC MAF Cleaner
Check for vacuum leaks
Make sure you got NO Ignition misfires.they can spike the computer and come back on the TPS, and then give you the ETC issues. (Very Technical stuff) Don't throw parts at it.

Nov 08, 2010 | 2003 Dodge Durango

1 Answer

I have a 2003 Jeep Liberty. My check engine light comes on frequently. The diagnositc check always says its the "Pedal Alignment Sensor". What is pedal alignment and how do I have this checked and/or...

I'm assuming that you are talkin about P0122 Code - Throttle Position Sensor/Switch A Circuit Low Input

A P0122 code means that the the car's computer has detected that the TPS (throttle position sensor) is reporting too low a voltage. On some vehicles that lower limit is 0.17 - 0.20 volts (V).

Did you adjust it when you installed it? If the signal value is less than .17V then the PCM sets this code. Could be an open or a short to ground in the signal circuit. Or you may have lost the 5Volt reference voltage.

Symptoms may include:
* Rough or low idle
* Stalling
* Surging
* No/little acceleration
* other symptoms may also be present

Causes: A code P0122 may mean that one or more of the following has happened:
* TPS not mounted securely
* TPS circuit short to ground or another wire
* Faulty TPS
* Damaged computer (PCM)

Possible Solutions: Some recommended troubleshooting and repair steps are:
* Carefully check the throttle position sensor (TPS), wiring connector, and wiring for breaks, etc. Repair or replace as necessary
* Check the voltage at the TPS (refer to a service manual for your vehicle for specific information). If the voltage is too low that is indicative of a problem. Replace if necessary.
* If recently replaced the TPS may need to be adjusted. On some vehicles the installation instructions call for the TPS to be properly aligned or adjusted, consult a repair manual for specifics.
* If there are no symptoms at all, the problem may be intermittent and clearing the code may resolve the issue temporarily. If this is the case then you should definitely check the wiring to be sure it's not rubbing on anything, grounding, etc. The code may come back.

Hope helps (remember comment and rate this).

Sep 22, 2010 | Jeep Liberty Cars & Trucks

1 Answer

Adjustable throttle position sensor

I'm assuming you have the 3.3l v-6. When I look up the part, it seems to have slotted holes. Therefore, it is designed to be adjusted after installation. If your tps has these slotted bolt holes, adjust it to satisfy the settings in the test procedure below.
  1. Remove air cleaner. Disconnect the TPS harness from the TPS.
  2. Using suitable jumper wires, connect a digital voltmeter J-29125-A or equivalent to the correct TPS terminals A and B.
  3. With the ignition ON and the engine running, The TPS voltage should be 0.3-1.0 volts at base idle to approximately 4.5 volts at wide open throttle.
  4. If the reading on the TPS is out of specification, check the minimum idle speed before replacing the TPS.
  5. If the voltage reading is correct, remove the voltmeter and jumper wires and reconnect the TPS connector to the sensor.
  6. Reinstall the air cleaner.

Jul 29, 2017 | 1991 Oldsmobile Cutlass Ciera

4 Answers

On a 04 camry with 2.4 ltr engine, can I replace just the throttle position sensor or do i have to replace the entire throttle body? The engine code said faulty throttle body.

I think the terms "Throttle Positon Sensor", TPS and "Throttle Body" can be misleading at least in regards to the 04 Camry.

My 04 Camry gave a diagnostic reading of P2121 for my problem "Throttle PEDAL position switch D circuit". However, we changed out the complete Throttle Body/TPS (Toyota Part #22030-0H020) that did NOT fix problem.

The 04 Camry TPS Electronic Module "Throttle Positon Sensor" is factory assembled and riveted to the side of the throttle body. The only way to service/inspect it would be to cut off or drill out the rivets. Not sure you could open the darn thing if you got it off, but that seems to be the only way Toyota sells them!!

Hopefully a new Throttle PEDAL Position Sensor (Toyota Part # 78010-33010 PEDAL ASSY, ACC)
will fix it. This is located under the dash near the accelerator pedal.

So, now I would recommend FIRST to replace the "Throttle PEDAL Positon Sensor" (it is much, much cheaper) and then the Throttle Body/TPS assembly!! Unless of course, you get a diagnostic code as you did for "faulty throttle body!!

Nov 12, 2009 | 2004 Toyota Camry

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