P019A
O2 Sensor Delayed Response - Rich to Lean Bank 1 Sensor 3
P019A is an OBD-II diagnostic trouble code meaning: O2 Sensor Delayed Response - Rich to Lean Bank 1 Sensor 3. Common causes: dirty or worn oxygen sensor, problems in the sensor circuit (break, contact corrosion). Estimated repair cost: $56–167.
Symptoms
- Deterioration in engine dynamics
- Increased fuel consumption
- Unstable idling
- Check Engine Light Illuminates
Causes
- Dirty or worn oxygen sensor
- Problems in the sensor circuit (break, contact corrosion)
- Leaks in the exhaust system
- Malfunction of the catalytic converter
- Incorrect operation of the fuel system
How to Fix
- Check the condition of the oxygen sensor for contamination or damage.
- Check the integrity of the wiring harness and contacts
- Eliminate leaks in the exhaust system
- Check catalytic converter
- Replace sensor if necessary
Related codes
Error P019A by Vehicle Brand
FAQ
What does the P019A code mean?
P019A is an OBD-II diagnostic trouble code that indicates: O2 Sensor Delayed Response - Rich to Lean Bank 1 Sensor 3
What causes a P019A error code?
The most common causes of P019A include: Dirty or worn oxygen sensor; Problems in the sensor circuit (break, contact corrosion); Leaks in the exhaust system; Malfunction of the catalytic converter.
How do I fix a P019A diagnostic trouble code?
To fix P019A: Check the condition of the oxygen sensor for contamination or damage.. Check the integrity of the wiring harness and contacts. Eliminate leaks in the exhaust system. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P019A?
Limited driving only, diagnose soon
How much does it cost to fix P019A?
The estimated repair cost for P019A is $56–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat