P213B Fault Code

Exhaust Gas Recirculation Throttle Control Circuit B Range/Performance

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

The P213B fault code indicates an issue with the Exhaust Gas Recirculation (EGR) throttle control circuit B. This code typically arises when there is an abnormal voltage signal or performance issue detected in the throttle control circuit designed for managing exhaust emissions. This system plays a critical role in reducing emissions by recirculating a portion of the exhaust gases back into the engine's intake, which helps optimize combustion temperatures and overall efficiency.

What are the symptoms of the P213B code?

Drivers may experience a variety of symptoms indicating a problem with the EGR throttle control, such as:

• Illuminated check engine light (CEL).
• Decreased engine performance and power.
• Rough idling or stalling issues.
• Increased emissions leading to possible failure in emissions testing.
• Unusual engine noises related to throttle operation.

What causes the P213B code?

Several factors can contribute to the P213B fault code, including:

• Faulty or damaged EGR valve.
• Poor electrical connections or damaged wiring in the throttle control circuit.
• Malfunctioning throttle position sensor (TPS).
• Software issues or calibration errors in the engine control module (ECM).
• Excessive carbon buildup in the EGR system.

How to fix P213B?

To resolve the P213B code, a thorough diagnostic process may be needed, which typically includes:

• Inspecting and cleaning or replacing the EGR valve if it's faulty or clogged.
• Checking for any damaged wiring or poor connections in the throttle control circuit.
• Testing the throttle position sensor and replacing it if necessary.
• Updating the ECM software and performing any necessary recalibrations.
• Cleaning the intake and EGR passages to remove carbon buildup.