P2141 Fault Code

Exhaust Gas Recirculation Throttle Control Circuit A Low

• What does that mean?
• Symptoms
• Causes
• Solutions

The P2141 fault code indicates a problem with the Exhaust Gas Recirculation (EGR) throttle control circuit A being too low. This circuit plays a crucial role in managing the flow of exhaust gases back into the engine's intake, which helps to reduce emissions and improve efficiency. When this circuit is not functioning properly, it can lead to a range of engine performance issues.

What are the symptoms of the P2141 code?

• Illuminated check engine light on the dashboard.
• Decreased engine performance, such as rough idling or stalling.
• Increased emissions, which may lead to failed emissions tests.
• Poor fuel economy due to improper air-fuel mixture.
• Engine hesitation during acceleration.

What causes the P2141 code?

• A malfunctioning EGR valve that fails to open or close correctly.
• Damaged or corroded wiring that affects the voltage or signal strength in the control circuit.
• A failed EGR throttle position sensor that misreads the position of the throttle plate.
• Blockages in the intake or exhaust systems that prevent proper air flow.
• Issues with the engine control module (ECM) that prevent it from receiving accurate data.

How to fix P2141?

• Inspect and repair any damaged wiring in the EGR throttle control circuit.
• Replace a faulty EGR valve if it is not functioning properly.
• Test and replace the EGR throttle position sensor if it fails to provide accurate readings.
• Clean any blockages in the intake and exhaust systems.
• Reprogram or replace the ECM if it is determined that it is malfunctioning.