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Home >> Mitsubishi >> 2003 >> Lancer Evolution >> Repair and Diagnosis >> External Pages >> Different car >> Section 30 (Engine Controls - Self-Diagnostics) >> Diagnostic Tests >> DTC P1225: Closed Throttle Position Learning Performance Problem >> Diagnostic Procedure
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Diagnostic Procedure

WARNING: This page is about a different car, the 2002 Nissan Maxima and 2002 Infiniti I35. However, it is still accessible from the selected car via links, so may be relevant.
  1. Turn ignition off. Remove air intake duct. Check for foreign matter between throttle valve and throttle housing. If foreign matter is found, remove foreign matter, and clean throttle housing. If foreign matter is not found, go to next step.
  2. Replace electric throttle control actuator. Perform throttle valve closed position learning and idle air volume learning. See PROGRAMMING  .
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