P0220 Fault in the second throttle or accelerator pedal sensor wiring

By: Diagno editorial team · Updated: 2026-10-15

P0220 means: Fault in the second throttle or accelerator pedal sensor wiring. This sensor tells the engine computer how far the throttle is open or how far the accelerator pedal is pressed. Drive gently and have the car checked soon. The most common repair costs about €90–180 in Estonia, depending on make and model.

What it means

This sensor tells the engine computer how far the throttle is open or how far the accelerator pedal is pressed. When it fails, the car often goes into limp mode and the throttle doesn't respond properly. The engine computer isn't getting a proper signal from the sensor at all.

What could be wrong

1. 1Throttle body is dirty or its sensor is worn · Throttle body clean or replace €90–180
2. 2Connector or wire · Wiring or connector repair €45–90
3. 3Accelerator pedal sensor is worn · Accelerator pedal sensor replacement €120–240

What you can check yourself

Check the throttle body and accelerator pedal connectors. If the car went into limp mode, switch the ignition off for a couple of minutes and try again. You can check the simple things yourself, but the repair is best done in a workshop.

How we fix it

1. We check the sensor readings with a diagnostic tool
2. We clean the throttle body and re-learn it
3. We replace the throttle body or accelerator pedal

Standard SAE description: Throttle/Pedal Position Sensor B Circuit