# P2122 code: new accelerator pedal/sensor, but still stalls

**URL:** <https://community.cartalk.com/t/p2122-code-new-accelerator-pedal-sensor-but-still-stalls/201013>\
**Category:** Maintenance/Repairs\
**Tags:** nissan, versa\
**Created:** [July 14, 2025, 1:52am UTC](https://community.cartalk.com/t/p2122-code-new-accelerator-pedal-sensor-but-still-stalls/201013 "2025-07-14T01:52:56Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Ray-O\_Vac](https://avatars.discourse-cdn.com/v4/letter/r/eb8c5e/32.png) [@Ray-O\_Vac](https://community.cartalk.com/u/Ray-O_Vac)\
**Post date:** [July 14, 2025, 1:52am UTC](https://community.cartalk.com/t/p2122-code-new-accelerator-pedal-sensor-but-still-stalls/201013/1 "2025-07-14T01:52:56Z")

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2007 Nissan Versa.  
Acceleration felt weird one morning–revs would lag: they’d happen a few moments after pressing pedal and stayed high for a bit after releasing pedal, and generally I didn’t feel much power. Then acceleration felt normal on a short drive a few hours later. But next time I tried to drive, car stalled out after a minute.

Got P2122 code (throttle/pedal sensor switch/circuit D)  
Bought new accelerator pedal/sensor and replaced.  
I did the accelerator pedal relearn procedure.

Drove normally for a drive of at least 15 minutes.  
But on my next drive it stalled out again as I was braking for a stoplight, even though it seemed to have been operating normally before the stall. Got it started up after a few cranks and got home, with another couple stalls on the way!

So apparently the new accelerator pedal/sensor did not solve the entire problem.

About a year ago, I had a somewhat similar surge-and-stall problem on the same car, which was helped by cleaning inside throttle body. But would a sticky throttle valve ever be the cause of a P2122 code for the accelerator? And could throttle body be dirty again after just maybe 5K miles on this car?

Any ideas?

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**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\
**Post date:** [July 14, 2025, 2:07am UTC](https://community.cartalk.com/t/p2122-code-new-accelerator-pedal-sensor-but-still-stalls/201013/2 "2025-07-14T02:07:06Z")

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Time to look at the connector and wires.

> **[\[SOLVED\] Fixing P2122: Low Circuit In Throttle/Pedal Position Sensor/Switch](https://carmodnerd.com/p2122/)**
>
> To solve the P2122 fault code, replace the faulty throttle position sensor and clear the code using an OBD-II scanner. Steps to fix are listed inside.

Tester