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Throttle/Pedal Position Sensor

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Old Sep 19, 2017 | 02:36 PM
  #16  
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Originally Posted by Johnhav430
Now I have a better picture myself,,,,on my Nissan, it's in the throttle body. And, my Nissan threw codes from time to time, and when the code was present, the rpms fluctuated, and being a physical cable linkage to it, pressing the accelerator to the floor multiple times would cure it, sometimes for 2 years. The reason I did not replace was a right angle screwdriver was needed which I do have, but the screw was frozen and stripped. If the LS430 follows the same concept, but places the TPS at the pedal, then it would almost stand to reason that if pressing on it a few times does not work, and if it's not a software glitch, then the physical device needs to be replaced. But I think on the LS430 it's like 10X the cost of the Nissan....
Nissan's have throttles cable but TPS is electronically controlled, if you did notice Nissan's pedals seem to be more "lively". Everyone once awhile you have to reset the ECU to relearn the throttle positions, made huge differences after the reset, you can Google it. Unfortunately I am not very sure how Toyotas and Lexus work.
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Old Mar 18, 2021 | 09:17 AM
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This is traction control engaging slightly. It's really weird and scary at times. I've tested the theory by driving without vsc and it never does this. My03
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Old Dec 2, 2025 | 09:22 AM
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Can anyone provide the part code for the Pedal Position Sensor or Throttle Position Sensor? (are they the same?)
I have tried searching on the Bell site and cannot get those names.
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Old Dec 2, 2025 | 02:43 PM
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Originally Posted by CA2WALS430
Can anyone provide the part code for the Pedal Position Sensor or Throttle Position Sensor? (are they the same?)
I have tried searching on the Bell site and cannot get those names.
TPS- https://parts.belllexusnorthscottsda...945230150.html
2001 to 2003 only.
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Old Dec 2, 2025 | 02:49 PM
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Thanks, @bradland ! I do need 04, so what a bummer, I double-checked too. But good to know it is called that. Could Bell just not offer??.... I will try a couple other sites.
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Old Dec 2, 2025 | 02:56 PM
  #21  
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Originally Posted by CA2WALS430
Thanks, @bradland ! I do need 04, so what a bummer, I double-checked too. But good to know it is called that. Could Bell just not offer??.... I will try a couple other sites.
I’m pretty sure you’re 04 doesn’t have a TPS.
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Old Dec 2, 2025 | 03:00 PM
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Really? yeah I checked 3 other sites. Goose chase here, eh?
Amayama had this, but when I put that number in Bell, it said unfound:

SENSOR, THROTTLE POSITION

Genuine Toyota (8945287Z01)


89452-87Z01
Weight unknown
Catalog SENSOR, THROTTLE POSITION
Out of stock

There is a new one on ebay, but I will email the seller first and respond to complete this thread.
Nah, when I put my VIN in Amayama, it said no matches found. Then I put it in the ebay fit guide and it said negative.

Any idea what they did instead? @Yamae ??

Last edited by CA2WALS430; Dec 2, 2025 at 03:16 PM.
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Old Dec 2, 2025 | 05:14 PM
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If you check the rockauto catalog, it shows a TPS sensor for a 2003 (PFL) but not a 2004. Not sure what takes the place of the TPS but probably just built into the throttle body electronics and not a serviceable part.
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Old Dec 2, 2025 | 07:15 PM
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Originally Posted by CA2WALS430
Any idea what they did instead? @Yamae ??
0:50 to 3:45 explains it pretty clearly.
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Old Dec 2, 2025 | 07:31 PM
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Strange that he states to manually move the throttle blade and not use the gas pedal to open the throttle when cleaning. It is my understanding that manually operating the throttle blade on a drive by wire throttle body is NOT a good practice. Google search does seem to validate that if you don't look at all the idiot youtube videos
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Old Dec 3, 2025 | 08:21 AM
  #26  
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Thank you both. I found another thread more applicable to continue my discussion.

Last edited by CA2WALS430; Dec 3, 2025 at 09:01 AM.
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Old Dec 3, 2025 | 09:17 AM
  #27  
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*delete*

Last edited by CA2WALS430; Dec 3, 2025 at 09:20 AM.
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