Rajan Wilcox
Advanced Fuel Dynamics (AFD) is a company that offers performance advantages for vehicles with variable E85 blends. The AFD system uses a sensor and a plug-in system called ProFlex that can be installed on many late-model, electronically fuel-injected vehicles. It measures the percentage of ethanol and calculates the necessary adjustments to the stock ECU signals, allowing users to seamlessly run any blend of gasoline and ethanol. While AFD doesn't directly discuss how to identify if you need their product, there are several ways to determine if you have a faulty fuel injector. You can perform a listening test, where you place a screwdriver on the injector and listen for a clicking sound, or check for leaks by smelling for gas or looking for visible signs. Additionally, you can use a diagnostic scanner or perform a voltage test on the wires connected to the injector. If your car's engine is misfiring, idling roughly, or experiencing weak fuel efficiency, it could be an indication of a faulty injector.
Characteristics and Values of AFD Fuel Injectors
| Characteristics | Values |
|---|---|
| Company | Advanced Fuel Dynamics (AFD) |
| Product | ProFlex system |
| Compatibility | Many late-model, electronically fuel-injected vehicles |
| Installation | Quick and easy |
| Function | Measures the percentage of ethanol |
| Components | Plug-in harness and stand-alone controller |
| Features | Reads and re-tunes existing ECU commands |
| Advantage | Seamlessly run any blend of gasoline and ethanol |
| Application | Vehicles with larger injector sizes |
| Benefits | Improved power, cooling, and octane enhancement |
| Testing | Dyno testing for capacity and AFR levels |
| Injector Upgrade | Supplying the right injectors |
| Example | ProFlex Commander package for a C5 Corvette |
| Result | Improved rwhp and torque |
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What You'll Learn
- AFD fuel injectors can be identified by their capacity to handle additional fuel flow
- AFD tests vehicles to ensure injectors have enough capacity and acceptable AFR levels
- AFD's ProFlex system can be installed on late-model, electronically fuel-injected vehicles
- AFD's ProFlex system can be advantageous for improving power and taking advantage of ethanol's benefits
- AFD fuel injectors can be identified by their ability to handle variable E85 blends and performance advantages
AFD fuel injectors can be identified by their capacity to handle additional fuel flow
Advanced Fuel Dynamics (AFD) is a relatively new company that offers interesting performance advantages for vehicles. AFD's ProFlex system can be installed on many late-model, electronically fuel-injected vehicles, and it measures the percentage of ethanol in the fuel. This system then employs a plug-in harness and a stand-alone controller to read and re-tune the existing commands from the stock ECU.
AFD's ProFlex system is particularly useful for vehicles that run on larger injector sizes, as it allows for maximum potential fuel flow. The system does not demand a re-tune of the existing setup, making it a convenient option. The biggest advantage of the AFD system is its ability to handle variable E85 blends, which can be tricky to tune. By testing vehicles on a dyno with E85 fuel, AFD ensures that the onboard injectors have the capacity to handle the additional fuel flow and maintain acceptable AFR levels throughout the rev range.
AFD's ability to supply injectors that can handle the additional fuel flow required by higher ethanol blends is a significant advantage. This ensures that vehicles can utilize the benefits of ethanol-mixed fuel without sacrificing performance. By addressing the issue of constantly changing blends, AFD offers a unique solution for optimizing engine power and efficiency.
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AFD tests vehicles to ensure injectors have enough capacity and acceptable AFR levels
AFD or Air Fuel Ratio is a critical component of a vehicle's performance and longevity. Testing vehicles for AFR levels and fuel injector capacity is essential to ensure optimal engine performance and prevent failures. Here are some detailed steps and considerations for AFD testing:
Testing for Injector Capacity:
Firstly, it is important to understand that fuel injectors spray fuel into the engine's cylinders, and their proper sizing is vital for engine performance. While bigger injectors might seem advantageous, it is not always the best option. Fuel injectors should be sized appropriately to ensure sufficient fuel flow without causing over-fuelling issues.
To test the capacity of fuel injectors, start by consulting the vehicle's owner's manual to identify the type and size of the injectors. Then, perform a listening test by starting the engine and letting it idle. Place the tip of a long metal screwdriver against each injector and listen for a clicking sound, indicating a functioning injector. A lack of sound may suggest the need for cleaning or replacement. Additionally, check for leaks around the injectors, as visible leaks or the smell of fuel can indicate worn O-ring seals, which may require replacement.
Ensuring Acceptable AFR Levels:
AFR levels are critical to the engine's performance and longevity. Incorrect AFR levels can lead to engine failures, reduced fuel economy, and reliability issues. To test AFR levels, utilize a diagnostic scanner or an on-board diagnostics (OBD) reader, which can identify errors and problems by reading the data stored in the vehicle's computer system.
Additionally, consider the age of the fuel system, as over time, it can get clogged with dirt, reducing flow rates. Regular cleaning of the fuel injectors may be necessary, and this can be done by pouring a fuel system cleaner into a full tank of gas.
When making modifications to the fuel system, such as installing larger injectors or upgrading the fuel pressure regulator, it is crucial to ensure that the setup suits the vehicle. Installing bigger injectors without proper remapping can cause over-fuelling issues, impacting economy and performance. Similarly, an incorrectly set fuel pressure regulator can lead to lean running and engine failure.
In summary, AFD testing involves checking the capacity of fuel injectors and ensuring acceptable AFR levels. By following the steps outlined above, vehicle owners can help maintain optimal engine performance, prevent failures, and ensure the longevity of their vehicles.
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AFD's ProFlex system can be installed on late-model, electronically fuel-injected vehicles
The ProFlex system by Advanced Fuel Dynamics (AFD) can be installed on late-model, electronically fuel-injected vehicles. It is a plug-and-play system that can be set up in about an hour in your driveway or garage. The system utilises a sensor that measures the percentage of ethanol and gasoline in your fuel and sends this information to the Commander control module. This module then modifies fuel delivery to maximise power and protect your engine, regardless of the blend you are running. From 100% gasoline to 100% ethanol, the Commander module employs BlendSense infinitely variable fuel mapping technology to deliver the exact right amount of fuel to your injectors.
The ProFlex system is compatible with vehicles that have an LS, Coyote, or Gen. 3 HEMI engine. It is also available for retro-fit LS engines, operating in the same manner as the more vehicle-specific systems and without demanding a re-tune of the existing system. AFD's engine swap kits also include ethanol-compatible fuel system parts for these engine types.
AFD tests every vehicle on a dyno while running E85 to ensure the onboard injectors have enough capacity and the AFR stays at acceptable levels. When vehicles require an injector upgrade, AFD can supply the right injectors. For example, in a case study, AFD added its ProFlex Commander package to a C5 Corvette with an LS1 engine, resulting in an improvement from 299 to 329 rwhp and a matching gain in torque to a 345 lb-ft peak.
To determine if your vehicle has a fuel injector issue, you can perform a listening test. Start the engine and let it idle, then place the tip of a long metal screwdriver against one of the fuel injectors. Put your ear on the handle of the screwdriver, and if you hear a clicking sound, the injector is functioning correctly. If you don't hear anything, the injector may need to be cleaned or replaced. You can also check for leaks on or around the injector by smelling for gas or looking for visible leaks or drips. Additionally, a diagnostic scanner, also known as an on-board diagnostics (OBD) reader, can help identify bad fuel injectors by reading the data stored in your vehicle's computer system.
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AFD's ProFlex system can be advantageous for improving power and taking advantage of ethanol's benefits
The AFD ProFlex system offers several benefits for improving power and taking advantage of ethanol's benefits. Firstly, it provides a simple solution to the challenge of inconsistent E85 fuel blends, which can vary from 51% to 83% ethanol at the pump. This inconsistency can lead to efficiency and consistency issues, requiring conservative E85 tunes that negate the expected power gains. The ProFlex system addresses this by automatically adjusting to the ethanol levels, ensuring optimal performance regardless of the ethanol content.
The system also enhances power by leveraging the cooling properties of ethanol. Ethanol has a high latent heat of vaporization, allowing it to absorb heat from the air during the fuel-air mixing process. This results in a cooler, denser intake charge, which, in turn, produces more power and reduces the engine's sensitivity to detonation. This density enables the engine to generate its maximum power output, even with mildly aggressive timing curves.
The ProFlex system also offers flexibility in fuel choices. While E85 may not be as readily available as regular 91 octane fuel, the ProFlex kit allows for the use of any blend of E85 and 91 octane. This means that you can fill up with regular 91 octane when necessary and still benefit from the performance gains of E85 when it is accessible. Additionally, the ProFlex system provides a more pleasant driving experience due to the cleaner burning of E85, resulting in minimal odour.
AFD's ProFlex system is a reliable and user-friendly solution, as evidenced by positive reviews from users who have driven over 2,000 miles without any issues. The system ensures a consistent and stable idle, with no power delivery hesitations, and provides a mobile app to monitor the ethanol mixture in the tank accurately. Furthermore, AFD's testing on a chassis dyno demonstrated a significant power gain of 30 horsepower in a C5 Corvette equipped with the ProFlex Commander package.
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AFD fuel injectors can be identified by their ability to handle variable E85 blends and performance advantages
Fuel injectors are responsible for spraying fuel into the cylinders in the engine, which is then ignited by spark plugs to power the engine. Over time, fuel injectors can wear out or get clogged, leading to potential engine issues.
Advanced Fuel Dynamics (AFD) is a company that has developed a system to address the challenges posed by variable E85 blends. E85 is defined by the US Department of Energy as any blend of 51% to 83% ethanol with gasoline, with winter blends containing more gasoline for easier cold-weather starting. AFD's ProFlex system is designed to handle these varying blends and offers performance advantages for late-model, electronically fuel-injected vehicles.
AFD's technology centres around an ethanol sensor that measures the ethanol content in the fuel. This information is then used to adjust the injector output accordingly, ensuring the engine receives the required amount of fuel. This is particularly important with higher ethanol blends, as they require a greater fuel flow to achieve the necessary air-fuel ratio. AFD's system can detect various fuels, including race gas, E85, and regular pump gas, and it can adapt to the fuel mix without user intervention.
The ProFlex system has been shown to provide significant power gains in some vehicles. In one case study, a C5 Corvette equipped with the ProFlex Commander package saw an increase from 299 to 329 rwhp, along with a matching gain in torque to a 345 lb-ft peak. Additionally, AFD's system can be easily installed without requiring a re-tune of the existing system, making it a convenient option for performance enthusiasts.
AFD fuel injectors can be identified by their ability to handle variable E85 blends and the associated performance advantages. Their sensing technology ensures that the injectors deliver the appropriate amount of fuel based on the ethanol content, resulting in improved engine performance and efficiency.
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Frequently asked questions
There are several signs that indicate a faulty fuel injector. These include a strong fuel smell, a glowing check engine light, a misfiring engine, rough idling, and weak fuel efficiency.
You can test your fuel injectors by using a screwdriver to listen for a clicking sound, which indicates a functioning injector. Alternatively, you can use a diagnostic scanner (OBD reader) to identify potential errors.
AFD stands for Advanced Fuel Dynamics, a company that offers performance advantages for vehicles using variable E85 blends.
If you notice leaks on or around your fuel injectors, it may be time to replace them. Additionally, if cleaning your fuel injectors does not improve rough idling, replacement may be necessary.
Fuel injectors typically last between 50,000 and 100,000 miles, but this can vary. Tracking your mileage and consulting your owner's manual can give you a better idea of when replacement is needed.
