Staff Answer
Jun 19, 2026 - 06:22 PM
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The P2141 code means the engine computer (PCM) has detected an abnormally low voltage signal in the control circuit for the EGR throttle (often the EGR valve positioner or intake throttle), indicating an electrical short.
Common Causes
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Wiring Issues: Frayed or broken wires leading to the EGR throttle assembly.
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Short Circuit: A wire in the harness is touching the engine or chassis, causing a ground fault.
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Faulty Solenoid/Motor: The internal electrical component of the throttle has failed.
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Corroded Connector: Moisture or debris causing a bad connection at the throttle plug.
Simple Fixes
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Inspect Wiring: Check for exposed wires or heat damage near the intake/EGR area.
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Clean Connector: Use electrical contact cleaner on the throttle control plug.
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Test Voltage: Use a multimeter to check if the circuit is shorting to the ground.
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Clear Code: Use an OBD-II scanner to reset the ECU once the electrical fault is repaired.
Note: This code often leads to poor engine performance or rough idling, as the throttle is not opening/closing correctly to manage exhaust gas recirculation.
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