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The oxygen sensors are situated before and after the catalytic converter in Jaguar’s engine exhaust system. Its function is to provide the live oxygen content percentage data to the engine control unit.
Modern vehicles, such as Jaguars, use a specific stoichiometric mixture of fuel and oxygen in their combustion chambers for maximum efficiency in power output and fuel economy. The oxygen sensor plays a vital role in balancing the mixture, as it provides real-time oxygen content data to the control unit. This makes the control unit adjust the intake of oxygen according to its availability in the engine.
Causes and Symptoms of Damaged Oxygen Sensors
The various causes of oxygen sensor malfunction;
- Several fluids in the vehicle can leak into the combustion chamber of the engine. These include engine oil, silicone from internal engine sealant, and antifreeze from a head gasket leak. The scum from these fluids coats the porous surface of the sensor, blocking contact between the exhaust air and the sensor.
- Oxygen sensors in Jaguar vehicles generally have a lifespan of 60,000 to 100,000 After this, the sensors start malfunctioning, often ceasing to work.
- The oxygen sensor is located under the Jaguar’s mainframe. This makes the sensors susceptible to physical damage from road debris and speed bumps.
- The ceramic element inside the sensor is highly sensitive to temperature. Thus, a thermal shock from a splash of water could break it down instantly.
- As the sensor is an electrical component, wiring and control unit issues are also sometimes responsible for its malfunction.
Damages to the oxygen sensor destabilize the mixture’s balance as the sensors start sending inaccurate data. This causes irregularities in combustion, which leads to irregularity in power output and strain on the exhaust system, especially the catalytic converter. As a result, the engine performance and the fuel efficiency decrease, and the vehicle fails the emission test. The persistence of this issue could cause severe and expensive damage to the Jaguar, such as engine seizure and catalytic converter breakdown.
Repair for Oxygen Sensor Failure in Jaguar
The Jaguar’s onboard diagnosis system is connected to a diagnostic scanner tool. The scanner retrieves and reads the error codes for engine and exhaust malfunctions in the process of identifying the origin of the damage signs. Often, further analysis of live sensor data is needed to pinpoint the exact cause of the malfunction. If the damage is not found in the sensor, a further visual test of the wiring layout is done to find wiring damage.
Upon identifying the damage, appropriate repairs are conducted. A damaged oxygen sensor is not repairable. Thus, it is replaced with a new OEM oxygen sensor component. If the damages are related to oil and other contaminants, then the sensor is cleaned, and the leaks are repaired. Wiring damage and short circuits are repaired if the damage stems from them.
After the repair, the control unit of the Jaguar is reset to function normally. A final test is done to measure the efficiency of the replaced sensor, and the vehicle is released.
Dallas’ Premier Garage for Faulty Oxygen Sensor Replacement in Jaguar
If you are facing an oxygen sensor malfunction in your Jaguar near the Dallas area, then come by our auto repair shop, European Service Center, near Plano or Cedar Springs. We are the leading European auto repair shop in both Georgia and Texas, servicing a wide range of European and exotic brands, including Audi, BMW, Jaguar, Land Rover, Mercedes, MINI, Porsche, Sprinter Vans, Volkswagen, Aston Martin, Maserati, and Ferrari.
Our ASE-certified, factory-trained, and experienced technicians provide accurate diagnosis and repair services, as they have been exclusively working on European regular and luxury auto models from various brands for many decades. Our facility houses advanced repair tools, factory-approved diagnostic scanning devices, and brand-proprietary software that provides proper diagnosis and accurate repair of your Jaguar’s faulty oxygen sensor.
We believe in delivering high-quality repair work and consistently strive to provide our customers with just that. We stand behind our work by offering our clients a 24-month/24,000-mile nationwide warranty. We also partnered with Liqui Moly Engine Oil to provide you with high-quality engine oil. Additionally, we offer after-sales services, such as loaner car rentals, for your convenience.
Operating from 6020 Cedar Springs Rd and 17899 Preston Rd, we provide our services to residents in the region, as well as nearby areas, including Addison, Carrollton, Garland, Irving, and Richardson, located near the Houston and Dallas areas.