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P1226 2008 NISSAN MAXIMA

P1226 2008 NISSAN MAXIMA - Closed Throttle Position Learning Performance Problem

Repair Importance Level: 3/3
Repair Difficulty Level: 2/3   
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Possible causes

  • Faulty Electric throttle control actuator (TP sensor 2)
  • Electric throttle control actuator (TP sensor 2) harness is open or shorted
  • Electric throttle control actuator (TP sensor 2) circuit poor electrical connection

Tech notes

You can try to clean the throttle body first before replacing anything. After clean or replacing the throttle body you will have to do an Idle Air Relearn and Throttle Valve Closed Position Learning

Idle Air Relearn

Throttle Valve Closed Position Learning

When is the code detected?

Closed throttle position learning is not performed successfully, repeatedly.

Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P1226 2008 Nissan Maxima Description

Electric Throttle Control Actuator consists of throttle control motor, throttle position sensor, etc. The Throttle Position (TP) sensor responds to the throttle valve movement.

The throttle position sensor has the two sensors. These sensors are a kind of potentiometers which transform the throttle valve position into output voltage, and emit the voltage signal to the Engine Control Module (ECM). In addition, these sensors detect the opening and closing speed of the throttle valve and feed the voltage signals to the ECM. The ECM judges the current opening angle of the throttle valve from these signals and the ECM controls the throttle control motor to make the throttle valve opening angle properly in response to driving condition.

OBDII Code P1226 2008 Nissan Maxima - Closed Throttle Position Learning Performance Problem - AutoCodes.com

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