OBD Guide

P1226

Closed Throttle Position Learning Performance Problem

P1226 is an OBD-II diagnostic trouble code meaning: Closed Throttle Position Learning Performance Problem. Common causes: throttle position sensor malfunction, throttle valve contamination. Estimated repair cost: $17–56.

Severity
⚠️ Medium
Can 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

  1. Cleaning the throttle body
  2. Checking and replacing the throttle position sensor
  3. Diagnostics of wiring and contacts
  4. Performing Throttle Learning Procedure
  5. Reset errors and test drive

Related codes

Error P1226 by Vehicle Brand

FAQ

What does the P1226 code mean?

P1226 is an OBD-II diagnostic trouble code that indicates: Closed Throttle Position Learning Performance Problem

What causes a P1226 error code?

The most common causes of P1226 include: Throttle Position Sensor Malfunction; Throttle valve contamination; Mechanical damage to the throttle assembly; Problems with wiring to the sensor.

How do I fix a P1226 diagnostic trouble code?

To fix P1226: Cleaning the throttle body. Checking and replacing the throttle position sensor. Diagnostics of wiring and contacts. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1226?

Yes, but get it checked soon

How much does it cost to fix P1226?

The estimated repair cost for P1226 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat