Home › OBD2 Codes › P2111
P2111 Throttle Actuator Control
Throttle Actuator Control System - Stuck Open
P2111 means the throttle actuator control system detected the throttle plate stuck in an open position when it should be closing, which can cause high idle or unintended acceleration.
🚗 No. A throttle stuck open is dangerous and can cause unintended acceleration.
Is P2111 really the problem on YOUR car? Get a free AI diagnosis ranked by probability for your exact year, make, and model.
Run Free Diagnosis →
🎯 Top Causes, Ranked by Likelihood
#1 Sticking or seized throttle plate $150-$600
Carbon buildup or a mechanical bind holds the plate open.
#2 Failed throttle return spring or motor $150-$600
A weak spring or bad motor prevents the plate from closing.
#3 Wiring or connector fault $50-$300
Circuit faults cause incorrect throttle positioning.
#4 ECM control fault $200-$1200
A control issue leaves the throttle commanded open.
🩺 Common Symptoms High or racing idle Reduced power / limp mode Check engine light Unintended acceleration risk Poor throttle control 💰 Repair Cost: DIY vs Shop
📋 Free OBD2 Code Cheat Sheet
The 50 most common codes with likely cause and DIY fix cost. Sent once, no spam.
🔧 How to Diagnose P2111 1 Inspect the throttle body for carbon buildup or a binding plate
2 Check the throttle return spring and motor operation
3 Read live data comparing commanded vs actual position
4 Clean or replace the throttle body, then relearn idle
❓ Frequently Asked Questions Can I drive with a P2111 code?
No. A stuck-open throttle risks unintended acceleration and is unsafe to drive.
How much does it cost to fix P2111?
A throttle body replacement typically runs $200-$900 at a shop.
What causes P2111?
Usually carbon buildup, a binding throttle plate, or a failed return spring or motor.
🔗 Related Codes
Don't guess. Know exactly what's wrong. AmpAuto's AI ranks the real causes for your specific vehicle in 30 seconds.
Diagnose P2111 Free →