P2141 — Exhaust Gas Recirculation Throttle Control Circuit "A" Low

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

Read the code and freeze frame Connect an OBD2 scanner, confirm P2141 is stored, and save the freeze frame data — it shows engine conditions when the fault was detected.
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.
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.
Subsystem check Command the EGR valve open/closed with a scanner and watch idle quality and position feedback.
Subsystem check Remove and inspect the EGR valve and passages for carbon blockage before replacing parts.
Verify the repair Clear the code, complete a full drive cycle including the conditions from the freeze frame, and confirm P2141 does not return.

Approximate repair cost

Repair cost depends on which component actually failed. Typical scenarios for P2141 (parts and labor, USD, independent shop rates): Repair vacuum lines or wiring: $80–$250; Replace the EGR valve: $250–$650; Clean the EGR valve and passages: $120–$350. Overall, fixing P2141 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

What are the symptoms of P2141?

Drivers most often notice: Check Engine Light on, slight power loss, hesitation and pinging under load, rough idle or stalling at idle.

What does OBD2 code P2141 mean?

Exhaust Gas Recirculation Throttle Control Circuit "A" Low (P2141): a powertrain (engine/transmission) fault affecting the exhaust gas recirculation (EGR) system. The car is usually drivable while you plan the repair. Most often caused by failed EGR valve or position sensor, ECM control circuit fault, faulty EGR solenoid or wiring.

What is the most common cause of P2141?

The most common causes are: failed EGR valve or position sensor, ECM control circuit fault, faulty EGR solenoid or wiring.

Is it safe to drive with P2141?

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 do I diagnose P2141 myself?

Start with a scan: confirm P2141, 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 P2141 mean?

The engine control module sets P2141 when it detects a fault in the exhaust gas recirculation (EGR) system. In practical terms: exhaust gas recirculation throttle control circuit "A" low. The code belongs to the powertrain (engine/transmission) group of OBD2 codes.

This code does not appear from a single bad reading: the module must see the fault condition repeat under defined operating conditions before it turns on the warning light. The freeze frame captured with P2141 — engine load, rpm, temperature, speed — tells you exactly when the problem occurs, so reproduce those conditions when testing.

What causes P2141?

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

Common symptoms of P2141

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

How to diagnose P2141

Connect an OBD2 scanner, confirm P2141 is stored, and save the freeze frame data — it shows engine conditions when the fault was detected.
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.
Visually inspect the wiring harness and connectors related to the exhaust gas recirculation (EGR) system for damage, corrosion, chafing or poor contact.
Command the EGR valve open/closed with a scanner and watch idle quality and position feedback.
Remove and inspect the EGR valve and passages for carbon blockage before replacing parts.
Clear the code, complete a full drive cycle including the conditions from the freeze frame, and confirm P2141 does not return.

How to fix P2141

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

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

How much does it cost to fix P2141?

Repair cost depends on which component actually failed. Typical scenarios for P2141 (parts and labor, USD, independent shop rates):

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

Overall, fixing P2141 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 P2141?