P143E
Direct Ozone Reduction Catalyst Temperature Sensor Gradient Too Low
P143E is an OBD-II diagnostic trouble code meaning: Direct Ozone Reduction Catalyst Temperature Sensor Gradient Too Low. Common causes: malfunction of the catalyst temperature sensor, damage to sensor wiring or connectors. Estimated repair cost: $33–167.
Symptoms
- Check Engine light comes on
- Reduced engine efficiency
- Increased fuel consumption
- Problems with passing inspection due to emissions
Causes
- Malfunction of the catalyst temperature sensor
- Damage to sensor wiring or connectors
- Catalyst clogged or damaged
- Problems with the exhaust system
- ECU malfunction
How to Fix
- Check catalyst temperature sensor
- Inspect the sensor wiring and connectors
- Check the condition of the catalyst
- Test the exhaust system for blockages
- If necessary, replace the sensor or catalyst
Related codes
FAQ
What does the P143E code mean?
P143E is an OBD-II diagnostic trouble code that indicates: Direct Ozone Reduction Catalyst Temperature Sensor Gradient Too Low
What causes a P143E error code?
The most common causes of P143E include: Malfunction of the catalyst temperature sensor; Damage to sensor wiring or connectors; Catalyst clogged or damaged; Problems with the exhaust system.
How do I fix a P143E diagnostic trouble code?
To fix P143E: Check catalyst temperature sensor. Inspect the sensor wiring and connectors. Check the condition of the catalyst. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P143E?
Yes, but get it checked soon
How much does it cost to fix P143E?
The estimated repair cost for P143E is $33–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat