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Home › Nissan-Datsun › 2002 › Sentra SE-R, Automatic › Repair and Diagnosis › Engine Performance › System › Engine Controls - Self-Diagnostics - 2.5 › Diagnostic Tests › DTC P1226: Closed Throttle Position (TP) Switch Learning Performance Problem › Diagnostic Procedure

Diagnostic Procedure

  1. Turn ignition off. Remove intake air duct. Inspect for foreign material stuck between throttle valve and throttle body housing. Clean with solvent if necessary and retest. If throttle bore is OK, go to next step.
  2. Replace electric throttle control actuator. Perform the following:
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