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2015 Ford F-150 Ecoboost Stalls with P2112 Throttle Actuator Stuck Closed Code

Model: 2015 F-150 Ecoboost Fault Code: P2112 Posted: 2017-06-02 07:12

My 2015 Ford F-150 Ecoboost started experiencing intermittent stalling while driving. The truck would idle roughly and fail to respond to throttle input, often requiring me to cycle the ignition key to restore normal operation. After several occurrences, the check engine light triggered a P2112 code — indicating the throttle actuator is stuck closed. I initially replaced the throttle body due to visible carbon buildup on the old unit, assuming it was the root cause. The new throttle body installed perfectly and the truck ran smoothly for about one week without any issues. I was confident the problem had been resolved. However, yesterday while driving home, the truck stalled again and would not move — it would start but fail to accelerate. Revving the engine occasionally produced a response, but when released, the throttle would continue climbing up to around 5000 RPM before gradually settling down, suggesting a stuck-open throttle condition. This behavior is different from the original stalling issue — now it's over-revving instead of failing to respond. I'm wondering if this could be related to a faulty throttle position sensor or a misalignment after replacement. Has anyone else experienced similar symptoms with a P2112 code on their 2015 F-150 Ecoboost? Any insights into potential causes or troubleshooting steps would be greatly appreciated.

Related fault codes
P2112
Comments (2)
Anonymous 2017-06-03 07:36

Check out this detailed explanation of OBD2 code P2112: https://www.obd-codes.com/p2112 This code typically indicates a throttle actuator fault — either stuck open or closed. In your case, the symptom shift from stalling to over-revving suggests the issue may have evolved after the replacement. It's important to verify whether the new throttle body was an OEM or aftermarket part. If the vehicle is only 2 years old and still has its original throttle body, cleaning it thoroughly might resolve the problem without replacement. The most common cause is carbon buildup on the throttle flap — which can lead to either a stuck closed (causing stalling) or stuck open (leading to over-revving). Cleaning the throttle body with proper tools and reseating the flap may restore normal operation.

Anonymous 2017-06-05 02:50

Hello Have You replaced throttle body with genuine part or after market? Vehicle is just 2 years old, do you have still original throttle body? If so then try to clean it up and fitted back and see how it's goes. Most likely mechanical fault as carbon build up around throttle flap. Before was stalling as flap stuck closed, now over revving as stuck open.