2020 Acura NSX Smells Like Gas

Common Causes of Fuel Odors in Your 2020 Acura NSX and Essential Safety Precautions

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Reviewed by
Andrew Hajjar
Written by RepairPal Car Genius
Updated January 14, 2025
0%
15% chance it's the
Gas Cap
0%
40% chance it's the
Emissions Control System
0%
45% chance it's
Something else
The most common reasons a 2020 Acura NSX smells like gas are the gas cap, the fuel system, or the emissions control system.
  • Gas Cap: A loose or damaged gas cap can cause fuel vapors to escape, triggering the check engine light and potentially affecting fuel system pressure.
  • Emissions Control System: A faulty emissions control system can lead to increased hydrocarbon emissions and trigger the check engine light due to malfunctioning components like the EGR valve or O2 sensors.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

What could be causing a gas smell in a 2020 Acura NSX, and how should I diagnose the issue?

When you detect a gas smell in your 2020 Acura NSX, it's essential to approach the diagnosis methodically to ensure safety and efficiency. Start by inspecting the vehicle for any visible fuel leaks, particularly under the car and around the engine compartment, as these are often the most straightforward issues to identify. If no leaks are apparent, the next step is to examine the fuel injectors, as a faulty injector can lead to fuel escaping into the engine bay. Following this, assess the evaporative emissions system, which is designed to prevent fuel vapors from escaping; any malfunction here could contribute to the odor. Additionally, inspect the exhaust system for leaks, as these can sometimes mimic a gas smell. Lastly, consider the air filter; a clogged filter can disrupt the air-fuel mixture, potentially causing an odor. By following this structured approach, you can effectively narrow down the source of the gas smell and take the necessary steps to resolve the issue.

What could be causing my 2020 Acura NSX to smell like gas?

If your 2020 Acura NSX is emitting a gas smell, it’s crucial to identify the underlying cause to ensure both safety and vehicle performance. One common issue could be a leaking fuel injector, which allows fuel to escape and create fumes inside the cabin. Additionally, inspect the fuel lines for any cracks or damage, as these can also lead to vapor leaks. Another area to check is the gas cap; if it’s loose, damaged, or missing, it can permit fuel vapors to escape from the tank. Furthermore, a leak in the fuel tank itself can be a serious concern, as it directly releases gas fumes into the vehicle. Lastly, consider the condition of the Evaporative Emissions Control System (EVAP), which is designed to manage fuel vapors; any malfunction here can contribute to the gas smell. Addressing these issues promptly is essential, and while some may be manageable as DIY repairs, consulting a qualified mechanic is advisable for more complex problems to ensure your vehicle remains safe and functional.

How urgent is it to address the gas smell in my 2020 Acura NSX?

Addressing a gas smell in your 2020 Acura NSX is not just a minor inconvenience; it is a critical safety concern that demands immediate attention. The presence of gasoline fumes can indicate a leak, which poses a significant fire hazard that could endanger both you and others on the road. Additionally, inhaling these fumes can lead to serious health issues, including dizziness, headaches, and nausea, making it essential to prioritize your well-being. Ignoring this warning sign can also result in more severe mechanical problems down the line, potentially leading to costly repairs and further safety risks. Therefore, if you detect a gas smell, it is crucial to seek professional assistance from a qualified mechanic or dealership without delay to ensure your vehicle is safe and functioning properly.

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Why Your 2020 Acura NSX Smells Like Gas: Causes & Solutions