P213C — Exhaust Gas Recirculation Throttle Control Circuit "B" Low

OBD2 code P213C flags a problem with the exhaust gas recirculation (EGR) system (exhaust gas recirculation throttle control circuit "B" low). The car is usually drivable while you plan the repair. Common culprits: ECM control circuit fault, vacuum leaks in EGR control lines, carbon buildup blocking the EGR valve or passages.

powertrain (engine/transmission)

Is it safe to drive?

Short-term driving is OK Generally safe to drive in the short term. Expect rough idle, pinging and higher emissions; on some cars the engine may derate. If the engine stalls or runs very rough, treat it as urgent.

How to diagnose with an OBD scanner

  1. Read the code and freeze frame Connect an OBD2 scanner, confirm P213C is stored, and save the freeze frame data — it shows engine conditions when the fault was detected.
  2. Check for companion codes and TSBs Related codes often reveal the real root cause. Also check manufacturer technical service bulletins (TSB) for your make and model — many P0xxx issues have factory fixes or software updates. Search by VIN on the manufacturer site or nhtsa.gov.
  3. Inspect wiring and connectors Visually inspect the wiring harness and connectors related to the exhaust gas recirculation (EGR) system for damage, corrosion, chafing or poor contact.
  4. Subsystem check Command the EGR valve open/closed with a scanner and watch idle quality and position feedback.
  5. Subsystem check Remove and inspect the EGR valve and passages for carbon blockage before replacing parts.
  6. Verify the repair Clear the code, complete a full drive cycle including the conditions from the freeze frame, and confirm P213C does not return.

Approximate repair cost

Repair cost depends on which component actually failed. Typical scenarios for P213C (parts and labor, USD, independent shop rates): Clean the EGR valve and passages: $120–$350; Repair vacuum lines or wiring: $80–$250; Replace the EGR valve: $250–$650. Overall, fixing P213C usually costs between $80 and $650. An accurate diagnosis before buying parts saves money — the most expensive scenario is rarely the first one to check.

Common questions

Will P213C clear itself?

Sometimes P213C clears after a few drive cycles if the fault was intermittent — for example a loose connector or a tank of bad fuel. The underlying cause usually remains, so the code tends to return. Clear it once; if it comes back, diagnose rather than erase it repeatedly.

How much does it cost to fix P213C?

Clean the EGR valve and passages — $120–$350; Repair vacuum lines or wiring — $80–$250; Replace the EGR valve — $250–$650. Exact cost depends on the root cause, your vehicle and local labor rates — a proper diagnosis is the cheapest first step.

Is it safe to drive with P213C?

Generally safe to drive in the short term. Expect rough idle, pinging and higher emissions; on some cars the engine may derate. If the engine stalls or runs very rough, treat it as urgent.

What does OBD2 code P213C mean?

OBD2 code P213C flags a problem with the exhaust gas recirculation (EGR) system (exhaust gas recirculation throttle control circuit "B" low). The car is usually drivable while you plan the repair. Common culprits: ECM control circuit fault, vacuum leaks in EGR control lines, carbon buildup blocking the EGR valve or passages.

How do I diagnose P213C myself?

Start with a scan: confirm P213C, save the freeze frame and note any companion codes. Then inspect the wiring and connectors related to the exhaust gas recirculation (EGR) system, and verify the suspect component against live data before buying parts.

What does P213C mean?

P213C (Exhaust Gas Recirculation Throttle Control Circuit "B" Low) is stored when self-diagnostics detect abnormal readings or behaviour of the exhaust gas recirculation (EGR) system. It belongs to the powertrain (engine/transmission) category.

The module monitors this system continuously while driving. When readings fall outside the expected range for a defined number of drive cycles, it stores P213C and switches on the warning light. Freeze frame data saved with the code shows the exact conditions — rpm, load, temperature, speed — at the moment the fault was detected, which is the best starting point for diagnosis.

What causes P213C?

  • ECM control circuit fault
  • vacuum leaks in EGR control lines
  • carbon buildup blocking the EGR valve or passages
  • failed EGR valve or position sensor

Common symptoms of P213C

  • rough idle or stalling at idle
  • increased NOx emissions
  • slight power loss
  • Check Engine Light on
  • hesitation and pinging under load

How to diagnose P213C

  1. Connect an OBD2 scanner, confirm P213C is stored, and save the freeze frame data — it shows engine conditions when the fault was detected.
  2. Related codes often reveal the real root cause. Also check manufacturer technical service bulletins (TSB) for your make and model — many P0xxx issues have factory fixes or software updates. Search by VIN on the manufacturer site or nhtsa.gov.
  3. Visually inspect the wiring harness and connectors related to the exhaust gas recirculation (EGR) system for damage, corrosion, chafing or poor contact.
  4. Command the EGR valve open/closed with a scanner and watch idle quality and position feedback.
  5. Remove and inspect the EGR valve and passages for carbon blockage before replacing parts.
  6. Clear the code, complete a full drive cycle including the conditions from the freeze frame, and confirm P213C does not return.

How to fix P213C

Start with the cheapest and most common causes before replacing expensive parts:

  • Clean the EGR valve and passages — $120–$350
  • Repair vacuum lines or wiring — $80–$250
  • Replace the EGR valve — $250–$650

How much does it cost to fix P213C?

Repair cost depends on which component actually failed. Typical scenarios for P213C (parts and labor, USD, independent shop rates):

  • Clean the EGR valve and passages: $120–$350
  • Repair vacuum lines or wiring: $80–$250
  • Replace the EGR valve: $250–$650

Overall, fixing P213C usually costs between $80 and $650. An accurate diagnosis before buying parts saves money — the most expensive scenario is rarely the first one to check.

Can you drive with P213C?

Generally safe to drive in the short term. Expect rough idle, pinging and higher emissions; on some cars the engine may derate. If the engine stalls or runs very rough, treat it as urgent.

Related OBD2 codes