EGR Throttle Control Circuit Range/Performance
The P213B code indicates that the Engine Control Module (ECM) has detected a range or performance issue in the Exhaust Gas Recirculation (EGR) throttle control circuit. This circuit controls the throttle plate that regulates exhaust gas flow into the intake manifold. The ECM monitors the actual position of the EGR throttle against the commanded position; if the difference exceeds a threshold, this code is set. Common causes include a faulty EGR throttle actuator, wiring issues, or a stuck throttle plate due to carbon buildup.
01. Most Common Causes
- Faulty EGR throttle actuator
- Carbon buildup on EGR throttle plate
- Wiring or connector issues in the EGR throttle circuit
- Failed ECM (rare)
02. Symptoms You Will Notice
- Check Engine Light illuminated
- Reduced engine performance or hesitation
- Rough idle or stalling
- Increased emissions
03. Step-by-Step Diagnosis
Step 1: Scan for additional codes and freeze frame data.
Step 2: Visually inspect EGR throttle actuator and wiring for damage or corrosion.
Step 3: Test EGR throttle actuator resistance and voltage supply using a multimeter.
Step 4: Command the EGR throttle with a scan tool and observe actual position vs commanded.
Step 5: Clean EGR throttle plate if carbon buildup is found; replace actuator if faulty.
04. Commonly Affected Makes
05. Frequently Asked Questions
Is it safe to drive with this code?▼
It is not recommended to drive long distances as it can cause reduced performance and potential stalling. Have it diagnosed promptly.
How much does it cost to fix?▼
Repair costs typically range from $150 to $400, including parts and labor, depending on the cause and vehicle.