How to test the TPS on my 2000 Toyota Echo the spec's

2000 Toyota Sienna Throttle Position Sensor (TPS) and Idle ...

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Dec 6, 2012 - Uploaded by Dean Ferraro, EA
Where is the Throttle Position Sensor (TPS) and Idle Air Control (IAC) Valve located on my 2000 Toyota ...

the two are not connected if the CO readings high then its a new cat providing the lambda sensors are working

throttle position sensors do not require calibration!

Keep the ignition switch to ON engine OFF. Hook the scanner, diagnostic computer or Techstream and take the reading. With the throttle pedal fully released it should read the TP sensor value between 9.8% to 18%.
It is better to keep the value as close as to 9.8%. To adjust the TP sensor, loosen the two torx screws, and adjust the sensor to the desired value.

Have you checked generic & enhanced data for codes
with a scan tool?

Have you scoped the TPS to put that to rest?

Your putting in throttle, but the ecu is not adding air calculation
or fuel,so you need to do some testing to see what's missing.

Starts & runs good, but under load or higher vacuum it bogs,so
check the egr system or any vacuum related systems.

Check for vacuum leaks,intake,exhaust before converter & evap system

Never make an attempt to disassemble the throttle plate. Nothing to do with it. Simply clean it and relearn the idle speed control speed.

Throttle Positioning Sensor

Sounds like a fuel problem. Check fuel pump and fuel rail. Do a fuel line pressure test. Try cleaning inside of throttle body really good and also the TPS at that location. There's many things that can make a car run bad. 

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!!

throttle position sensor or called tps