Flashing 520 230 Polaris Code – [5 Reasons To Know]

All the adventures involving ATV riding will not go to waste with minor issues. When you see the flashing 520 230 Polaris code on your dashboard, it’s important to know what it means and what to do.

So, what are the reasons behind the 520 230 Polaris code flashing?

The first 3 of the 5 main reasons are loose gas caps, low engine pressure, and misfiring cylinders. This is followed by issues with the catalytic converter and EVAP system leak. The solutions are very simple but if you can’t do it yourself, use professional help for permanent fixes.

Keep reading for more knowledge and further learning on how the solutions work… 

What Is Polaris Code 520 230?

The 520 230 Polaris code is an engine diagnostic code that is associated with the EVAP or the engine pressure system. It is typically used to indicate a problem with the fuel pressure or a failure in the ARV rider’s entire internal system.

These electrical functions inside the vehicle run the engine through power taken from the battery.

Usually, when the code is present, it is recommended that you troubleshoot and make the necessary repairs.  

What Is 520 230 31 Polaris Code?

The 520 230 31 Polaris code is a diagnostic code that is used to indicate issues with the fuel pressure system. For example, the code is generated to inform you about a problem that is happening with the relay circuits, indicating that the fuel distribution is not balanced.

Although the 520 230 codes are not that specific, when there is the number 31 flashing, it goes more specific. This means, popularly, it indicates issues with the fuel pressure system. 

5 Real Reasons Behind Flashing 520 230 Polaris Code

Whether you need to replace the fuel pump depends on the underlying issues. There are five different reasons why the problem is appearing.

The fix can be made accordingly, with or without replacing the fuel pump. 

Reason 1: Loose Gas Cap

When the Polaris ATV rider gas cap is loose, fuel can leak out and create a fire hazard. A gas cap that is not tight enough can allow dirt and debris to fly into the gas tank and clog it.

Also, if the gas cap is not tight, it can allow fumes from the gasoline to escape, which can be dangerous to the rider and others nearby.

The main reason behind a loose gas cap is that the threads are not properly aligned, which could make it difficult to screw the cap on tightly. Additionally, if the gas cap is not made from a durable material, it could eventually wear down and become loose.

Solution: Tighten The Gas Cap

To tighten the gas cap, you have to ensure that the cap is properly aligned, or else you won’t be able to tighten the cap. To align it, just place the cap and gas filter parallel to each other using a plier.

After that, make a firm grip and twist the cap clockwise until it is tight. This shall do it!

Reason 2: Low Engine Pressure

If the air filter is clogged, it can prevent enough air from reaching the engine, leading to low engine pressure.

As we mentioned before, another common problem that can cause low engine pressure is a leak in the fuel system. A leak in the fuel system can allow too much air into the system, which can also lead to low engine pressure.

In the end, if the ATV’s oil level is too low, it can also cause low engine pressure.

Solution: Replace The Spark Plugs

The first thing to do is to clean the air filter and seal the fuel system. You will replace the spark plugs if the cleaning and sealing solutions are not fixing the issue.

The process is very simple; you must remove the spark plug wire and coil and unscrew it. Then, put in the new plug to screw it and connect the wire and install the ignition coil.

It is a good idea to work with the fixing process involving mechanics who provide necessary service to Polaris owners. It will render a long-term, permanent solution. 

Reason 3: Misfire In Cylinders

The three main causes of misfires are fuel-related, ignition-related, and mechanical. A misfiring cylinder problem is directly related to a faulty fuel pump.

To diagnose the issue, you will need to troubleshoot each system and find out which is not working properly. You can check the fuel pump, fuel lines, and carburetor for leaks.

You should also check the engine oil level and ensure it’s correct. Once you have identified the issue, you can start to fix it and get your ATV ready to run. 

Solution: Replace The Fuel Pump

To apply the right fix, you should check the air and fuel filters, ensuring they are both clean and in good condition.

If all the other parts, such as plugs and coils, are in good condition, you might need to adjust the carburetor or replace the fuel pump. There are markings on the carburetor that indicate which screws or bolts need to be loosened to adjust it.

Be sure to take your ATV to a qualified mechanic and not do the job by yourself. 

Reason 4: Issues With Catalytic Converter

When the catalytic converter on the Polaris ATV rider malfunctions, it can cause various problems. The most common problems are decreased engine performance and increased emissions.

An overwhelming denseness and cluttering up of dirt and dust is the main reason for the catalytic converter to go out of work. 

Solution: Cleaning The Catalytic Converter

The Polaris ATV rider’s catalytic converter can be cleaned using a wire brush to remove any built-up carbon deposits. The converter can then be sprayed with a commercial solvent cleaner to remove any remaining residue.

It’s an easy process that carries the potential to solve the issue. If the code still flashes, we are saying again, call the professionals.

Reason 5: Leaking EVAP System

There are many potential causes of a leaking EVAP system on the Polaris ATV rider. Some common causes include a defective or cracked charcoal canister and loose or damaged hoses or connectors.

If you suspect that your Polaris ATV’s EVAP system is leaking, the best way to determine the cause is to have it inspected closely.

Solution: Seal The System

The best option to seal the system is to purchase an aftermarket EVAP system sealant and add it to your gas tank. This will help to stop the gas from leaking out. Another option is to try and tighten the bolts on the EVAP canister.

If they are loose, this could be causing the gas to leak out. You can also try cleaning the seals on the EVAP system with some chemical solvent. After that, you can apply a coat of grease or silicone sealant.

By doing any of these things, you should be able to stop the gas from leaking out and keep your Polaris ATV rider running smoothly.

What To Do To Prevent 520 230 Polaric Code From Flashing

A few things can be done to prevent Polaris Code 520 230 from flashing on ATV Rider. You have to ensure the battery is fully charged before starting the vehicle. This will help ensure that there is enough power to run the system properly.

It is good to clear any stored codes from the system before attempting to ride. This can be done by using a code reader or scanner. 

Overall, checking the system’s EVAP, fuses, and connectors for damage or corrosion is important. If any problems are detected, they should be fixed before riding. Regular maintenance is mandatory so that the internal system works properly. 


How do you clear a Polaris code?

You can clear a Polaris code by resetting the ECU. For that, you must disconnect the battery completely, and then you can clip out and clip in the wires of the terminals. This will drain the capacitors to form new data for the ECU. 

Does clearing codes reset the check engine light?

Resetting the Polaris code will flash the check engine light. You will need a scanner to turn off the light, which will clear all the internal codes that triggered the warning light. 

Will replacing the gas cap turn off the check engine light?

Yes, replacing the gas cap will turn off the check engine light. After the replacement, the light will reset when you turn on the engine. If it does not happen immediately, it will happen after turning the on and off the engine several times. 


The 520 230 Polaris code is an unusual scenario in contrast to other codes that go around these numbers. When you surf around the internet, do not be demoralized if you don’t find specific solutions. 

We had it covered the right way! And so, we will go now to be back soon.



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