Experiencing a check engine light in your 2014 Dodge Avenger can be concerning, especially when accompanied by unusual readings on your dashboard gauges. If you’ve scanned your OBD2 system and encountered the P0520 code, it’s likely related to your vehicle’s oil pressure sensor. This article will delve into what this code means, potential causes, and how to address it, specifically for your 2014 Dodge Avenger.
The P0520 code is a generic OBD2 trouble code that indicates an issue with the engine oil pressure sensor or switch circuit. Essentially, your car’s computer (PCM or Powertrain Control Module) is detecting an abnormal signal from the oil pressure sensor. This sensor is crucial because it monitors the engine’s oil pressure, ensuring proper lubrication and preventing engine damage. When the PCM detects a fault in the sensor circuit, it triggers the check engine light and stores the P0520 code. Common symptoms you might observe alongside this code include:
- Check Engine Light Illumination: This is the most obvious sign that something is amiss.
- Inaccurate or Non-Functional Oil Pressure Gauge: Your dashboard gauge may read low, high, erratically, or not at all.
Several factors can contribute to a P0520 code in your 2014 Dodge Avenger. While a failing oil pressure sensor is a common culprit, other possibilities should be considered:
- Faulty Oil Pressure Sensor/Sending Unit: The sensor itself can degrade or fail over time, leading to inaccurate readings.
- Wiring or Connector Issues: Damaged, corroded, or loose wiring or connectors in the sensor circuit can disrupt the signal.
- Low Engine Oil Pressure (Less Likely but Serious): Although less frequent with a P0520 code directly, genuinely low oil pressure can sometimes trigger sensor circuit issues. This is a more severe problem requiring immediate attention.
Diagnosing the P0520 code typically involves:
- OBD2 Scan: Confirming the presence of the P0520 code is the first step.
- Visual Inspection: Checking the oil pressure sensor, its wiring, and connectors for any obvious damage.
- Oil Pressure Test (If Necessary): In rare cases, a mechanical oil pressure test might be needed to rule out actual low oil pressure, although sensor replacement is usually the initial focus for P0520.
When it comes to repair options for a P0520 code on your 2014 Dodge Avenger, you have a few choices, each with varying costs:
- Dealership Repair: Dealerships offer expertise but often come with higher labor rates and part costs. A quote of around $700 for an oil pressure sensor replacement might be on the higher end, but it includes diagnosis and potentially OEM parts.
- Independent Mechanic (e.g., Pep Boys): Independent shops like Pep Boys can offer more affordable options. A quote of $330-$380 is significantly less than the dealership and can be a viable alternative.
- DIY Repair: For those with some automotive experience, replacing the oil pressure sensor yourself is possible. It requires basic tools and some mechanical knowledge. However, if you are uncomfortable or lack the tools, professional help is recommended.
Dashboard view of a 2014 Dodge Avenger illustrating a malfunctioning oil pressure gauge, a potential symptom linked to OBD-II code P0520 and oil pressure sensor issues.
Addressing a P0520 code is generally important and shouldn’t be ignored for extended periods. While it might not always indicate critically low oil pressure, a faulty oil pressure sensor prevents you from accurately monitoring your engine’s lubrication. Driving with an undiagnosed oil pressure issue could potentially lead to engine damage if genuine low oil pressure exists and goes unnoticed.
In conclusion, if your 2014 Dodge Avenger is showing a P0520 code, addressing the oil pressure sensor issue is advisable. Consider your comfort level with DIY repairs, budget, and the quotes from different repair shops to make the best decision for your situation. Prompt attention to this code can help ensure the longevity and health of your vehicle’s engine.
