P1226
Closed Throttle Position Learning Performance Problem
Severity
⚠️ MediumCan you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)
Symptoms
- Unstable idle speed
- Dips when pressing the gas pedal
- Check Engine Light Illuminates
- Increased fuel consumption
- Problems when starting off
Causes
- Throttle Position Sensor Malfunction
- Throttle valve contamination
- Mechanical damage to the throttle assembly
- Problems with wiring to the sensor
- Engine ECU malfunctions
How to Fix
- Cleaning the throttle body
- Checking and replacing the throttle position sensor
- Diagnostics of wiring and contacts
- Performing Throttle Learning Procedure
- Reset errors and test drive