P2567 — Direct Ozone Reduction Catalyst Temperature Sensor Circuit
OBD2 code P2567 flags a problem with the catalytic converter efficiency monitoring (direct ozone reduction catalyst temperature sensor circuit). The car is usually drivable while you plan the repair. Common culprits: aged or contaminated catalytic converter, faulty downstream or upstream oxygen sensor, engine misfires damaging the catalyst.
powertrain (engine/transmission)
Is it safe to drive?
Short-term driving is OK Usually safe to drive for a limited time: the car remains drivable, but emissions are elevated and fuel economy suffers. Do not postpone if you notice power loss, overheating of the exhaust, or a strong smell — a clogged converter can damage the engine.
How to diagnose with an OBD scanner
- Read the code and freeze frame Connect an OBD2 scanner, confirm P2567 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 catalytic converter efficiency monitoring for damage, corrosion, chafing or poor contact.
- Subsystem check Compare upstream and downstream O2 sensor waveforms in live data — a healthy converter smooths the rear signal.
- Subsystem check Check for exhaust leaks and rule out misfire codes before condemning the converter.
- Verify the repair Clear the code, complete a full drive cycle including the conditions from the freeze frame, and confirm P2567 does not return.
Approximate repair cost
Repair cost depends on which component actually failed. Typical scenarios for P2567 (parts and labor, USD, independent shop rates): Replace an oxygen sensor: $150–$450; Repair an exhaust leak: $100–$350; Replace the catalytic converter: $800–$2,500. Overall, fixing P2567 usually costs between $100 and $2,500. An accurate diagnosis before buying parts saves money — the most expensive scenario is rarely the first one to check.
Common questions
What does OBD2 code P2567 mean?
OBD2 code P2567 flags a problem with the catalytic converter efficiency monitoring (direct ozone reduction catalyst temperature sensor circuit). The car is usually drivable while you plan the repair. Common culprits: aged or contaminated catalytic converter, faulty downstream or upstream oxygen sensor, engine misfires damaging the catalyst.
Will P2567 clear itself?
Sometimes P2567 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.
What is the most common cause of P2567?
The most common causes are: aged or contaminated catalytic converter, faulty downstream or upstream oxygen sensor, engine misfires damaging the catalyst.
How do I diagnose P2567 myself?
Start with a scan: confirm P2567, save the freeze frame and note any companion codes. Then inspect the wiring and connectors related to the catalytic converter efficiency monitoring, and verify the suspect component against live data before buying parts.
How much does it cost to fix P2567?
Replace an oxygen sensor — $150–$450; Repair an exhaust leak — $100–$350; Replace the catalytic converter — $800–$2,500. Exact cost depends on the root cause, your vehicle and local labor rates — a proper diagnosis is the cheapest first step.
What does P2567 mean?
P2567 is logged by the onboard diagnostics when the catalytic converter efficiency monitoring does not behave as expected. The official definition is “Direct Ozone Reduction Catalyst Temperature Sensor Circuit”. This is a powertrain (engine/transmission) category code.
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 P2567 — engine load, rpm, temperature, speed — tells you exactly when the problem occurs, so reproduce those conditions when testing.
What causes P2567?
- exhaust leak ahead of the converter
- persistent rich or lean fuel mixture
- faulty downstream or upstream oxygen sensor
- oil or coolant entering the exhaust
- engine misfires damaging the catalyst
Common symptoms of P2567
- failed emissions test
- Check Engine Light on
- increased fuel consumption
- rattling noise from under the car
- sulfur or rotten-egg smell from the exhaust
How to diagnose P2567
- Connect an OBD2 scanner, confirm P2567 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 catalytic converter efficiency monitoring for damage, corrosion, chafing or poor contact.
- Compare upstream and downstream O2 sensor waveforms in live data — a healthy converter smooths the rear signal.
- Check for exhaust leaks and rule out misfire codes before condemning the converter.
- Clear the code, complete a full drive cycle including the conditions from the freeze frame, and confirm P2567 does not return.
How to fix P2567
Start with the cheapest and most common causes before replacing expensive parts:
- Replace an oxygen sensor — $150–$450
- Repair an exhaust leak — $100–$350
- Replace the catalytic converter — $800–$2,500
How much does it cost to fix P2567?
Repair cost depends on which component actually failed. Typical scenarios for P2567 (parts and labor, USD, independent shop rates):
- Replace an oxygen sensor: $150–$450
- Repair an exhaust leak: $100–$350
- Replace the catalytic converter: $800–$2,500
Overall, fixing P2567 usually costs between $100 and $2,500. An accurate diagnosis before buying parts saves money — the most expensive scenario is rarely the first one to check.
Can you drive with P2567?
Usually safe to drive for a limited time: the car remains drivable, but emissions are elevated and fuel economy suffers. Do not postpone if you notice power loss, overheating of the exhaust, or a strong smell — a clogged converter can damage the engine.