How To Pass Emissions With A Deleted Diesel – An Expert Guide

Knowing how to pass emissions with a deleted diesel is helpful for many people. 

If you have a deleted diesel, you need to find ways to make sure you pass emissions. After all, deleting diesel is considered as illegal. However, there are those who still do it. They intend to boost their vehicle’s fuel economy and engine power. So, the cost factor is worth it for them.

But at the same time, you need to make sure that a DPF delete can lead to penalties when you are caught.  This is why knowing how to get around this issue is very important and crucial.

Today, we will discuss some tips on how you can pass emissions when you have a deleted diesel. Let’s jump right into it.

how to pass emissions with a deleted diesel

How To Pass Emissions With A Deleted Diesel

There are three simple and effective ways for you to pass emissions with a deleted diesel. We will discuss these further below:

1. Tune with an OBD scanner

Your vehicle’s computer shows which parts are missing once the emission equipment has been removed. This is what your OBD II scanner is useful for. By utilizing this tool, you can easily detect the missing components.

So, the best thing to do is to perform vehicle tuning. This helps to improve responsiveness, speed, and efficiency. You can also make sure there are no displayed error codes on the computer once you have finished the tuning process.

But this task is not something we recommend if you lack experience in doing so. It is best handled by a specialist in this critical project.

2. Control the smoke density

Another thing you can do is by limiting the smoke opacity of your vehicle. The rule of thumb is to prevent it from going over 20 percent. You can do this through tuning. By doing so, you do not have to worry about being stopped by a traffic patrol. Since they only apprehend those with over 20 percent density of smoke.

3. Swapping an old emission equipment when testing

There are updates incorporated to the newer emission testing system. This is why passing the test is very challenging due to the ingenuity of the system, which can easily catch vehicles with deleted diesel.

But one thing you can do is to swap an old emission component while the testing process is happening. This way, you can pass the test without any issues. Then once the test is finished, you can just remove these components.

Additionally, you may want to consider driving in a state where there are no legal impediments to deleting diesel. There are not many states where this is illegal but one place to consider is Alberta in Canada. Some cities may require gasoline vehicles to undergo emissions test but this is not applicable to diesel vehicles. 

Thus, if you live in such an area, then that will be very helpful.

Additional Points To Consider

The EPA or Environmental Protection Agency implemented stringent guidelines for emissions to enhance air quality. The main focus is to minimize emissions by diesel engines, and this has affected the entire trucking industry.

Thus, those who have done engine deletes are in trouble unless they find a way to avoid getting caught. Basically an engine delete means the DPF or the diesel particulate filter has been deactivated. There are two components in the delete kit such as the tuner and the exhaust. 

By doing a dPF delete, this helps to improve the horsepower since your engine is able to run more efficiently and have more power.

It also ensures fuel efficiency. Once the DPF is clogged up, this increases the backpressure while slowing down the flow of fuel. Without the DPF, this eliminates the issue above while boosting the miles per gallon of your engine. 

Next up, a DPF delete can also reduce the need for maintenance. Your filter needs to be cleaned frequently to reduce clogging effects. With this extra maintenance, this adds to your expenses since it is a more complex task for technicians and mechanics. 

And lastly, replacement costs are eliminated completely. Even if your filter is well-maintained, it is likely to wear out over time. Then, you need to worry about buying and replacing it time and time again. With a DPF kit, you can potentially save several thousands of dollars since you do not have to worry about filter replacements.

But at the same time, a DPF delete is illegal. The EPA’s regulations state that tampering with the emissions component is against the law. Thus, you run the risk of committing violations and paying hefty fines when you are caught with a DPF deleted vehicle.

Thus, many owners ask if it is even possible to pass inspection and emissions tests with a deleted diesel. Fortunately, you can get this done through the tips we have shared above such as reducing smoke density, tuning your vehicle, and swapping the emissions equipment during the testing process.

When you are caught with a DPF deleted vehicle, you can get fined. The rate goes from $2,500 to as much as $37,500. It is most certainly not cheap, so it is something to be concerned about.

However, there are some vehicles that are exempted from a DEF. These include hauled vehicles, miniature motorcycles, firefighting vehicles, aircraft refueling vehicles, disaster relief vehicles, snowmobiles, and special equipment vehicles.

Otherwise, if your type of vehicle does not belong to any of these categories, it is best to avoid deleting the diesel component of your vehicle. Not only do you run the risk of getting caught and paying a hefty fine, but it also ends up voiding your vehicle’s warranty.

Read More: GM 6.6 Gas Problems – Causes And Solutions

Bottom Line

There are many reasons to not do a DPF delete but others still continue to do so because of the benefits they get from it. But if you worry about not being able to pass emissions with a deleted diesel, we hope these tips can help you. By doing so, you can avoid significant fines and headaches when caught with a DPF delete.

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