OBD Codes List

Diagnostic reference · P213B

P213B

EGR Throttle Control Circuit B Range/Performance

System
Fuel and air metering (P code)
Lamp
Check Engine Light
Category
Powertrain - Fuel/Air Metering

What it means

P213B means EGR Throttle Control Circuit B Range/Performance.

Check these first

  • A dirty or failing EGR throttle control valve
  • Corrosion or damage in the EGR throttle control wiring
  • Carbon buildup in the EGR passages
  • A vacuum leak at the intake manifold or throttle body
  • A failing ECM driver for the EGR throttle control

What to do next

  1. Inspect and clean the EGR throttle control valve
  2. Test the EGR throttle control wiring for opens and shorts
  3. Check the EGR passages for carbon buildup
  4. Command the EGR throttle valve with a scan tool and watch position data
  5. Replace the EGR throttle control valve if the reading is off
  6. Clear the code and retest

Look up another code

Enter a full code or a symptom. Press / to search. How to read a code

Type a code above, or start from a symptom or a common code.

Updated

Generic SAE J2012 definition. Last updated 2026-10-10.