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Old 10-27-2023, 11:13 AM #1
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Code P1121 APPS Help
Yesterday during a road trip I lost all acceleration power at the pedal and pulled off to the side of the road.
My code reader showed a P1121 (accelerator pedal position sensor range / performance problem)

I cleared the codes and was able to keep driving until my CEL light came back 20-30 miles later.

After reading online it sounds like it could be the APPS sensor on the throttle body itself and the whole throttle body will need to be replaced.

Has anyone had this code and was able to fix this problem without spending $400+ on a new TB?
It seems like replacing just the Throttle Position Sensor won't do the trick.
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Old 10-29-2023, 09:36 PM #2
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check here for some troubleshooting steps, it's for p1120 but it's the same procedure as p1121- https://www.teamtoyota4x4.org/archiv...fe/cip1120.pdf

also here- https://www.teamtoyota4x4.org/archiv...thrbod/ovi.pdf
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Old 12-04-2024, 10:16 PM #3
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Ran into P1120 as well recently...

Can you reup the links? Both send me to a site about sand castle making. lol.
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Old 12-04-2024, 11:07 PM #4
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Originally Posted by jb5555 View Post
Ran into P1120 as well recently...

Can you reup the links? Both send me to a site about sand castle making. lol.
This might help.

2001 4R 2WD Error Code P 1120 and P 1121 | Toyota 4Runner Forum [4Runners.com]
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