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The code P1126 for a 2002 Toyota indicates an issue with the Throttle Position Sensor (TPS) or the Throttle Body Assembly. It typically suggests that the engine control module (ECM) has detected a malfunction in the TPS signal, which could affect engine performance and idling. Common causes include a faulty TPS, wiring issues, or problems with the throttle body itself. It's advisable to inspect the sensor and associated wiring to diagnose and resolve the issue.

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4mo ago

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