To determine whether your Harley’s fuel injectors are working properly, you must first know how to test them. You can use a noid light, a fuel map, or a visual inspection. If the injectors are not responding to the pulse signal, you need to replace them. Here are some tips to help you check your injectors:
Using a noid light
Using a noid light to test the injectors in your Harley can be a great way to detect if your injectors are working correctly. You can do the pulse check in less than 10 minutes. Just make sure you have access to your bike and a place to test it easily. This method is safe, effective, and reliable. And you won’t have to worry about refueling your Harley or worrying about the safety of yourself and others.
The noid light is designed to detect any electrical issues with the injectors. You can attach it to the harness and plug it into a positive battery terminal. If the light doesn’t flash, you need to replace the injector. Luckily, you can use the noid light to diagnose a Harley’s injector problem yourself! Here’s how to test your injectors yourself:
Before using a noid light to test your injectors, make sure your motorcycle’s power source is working properly. You should be able to hear the noise when you crank the engine. You should also notice a steady blinking from your noid light. You can use two different Noid light sets. You can use the one that’s universal in size and features adjustable connectors. They fit almost any 2-wire component, and they also have a suction cup that allows you to stick them to your Harley’s body panels.
Noise lights are very useful when it comes to diagnosing electrical problems. These lights are used to check the signals going to the fuel injectors and ignition coils. They also check the signals going to other internal parts such as oxygen sensor heaters and DC solenoid motors. When the signal reaches the injectors, the noise light will begin to flash. If it does, then it means that the injector needs to be cleaned.
Using a fuel map
You’ve probably heard of EFI maps, but haven’t quite figured out what they are or how to use them on your Harley. These are essentially multidimensional look-up tables that are loaded into the fuel injection computer in your Harley’s ECM (Electronic Control Module). These maps are used by your ECM to determine how much fuel your engine needs and when it needs it, depending on engine settings and weather conditions. You can download these maps directly from your ECU or even buy them from your Harley dealer for a small labor fee.
Using a fuel map to test Harley gasoline injectors will help you determine whether the problem is the fuel supply or the injection system itself. Using the fuel map is the most accurate way to determine which fuel injectors need replacement. It also lets you know if you’re using a high-end fuel injector. Using the maps will help you determine if a specific fuel injector is the culprit behind the low-end pops.
Another good tool for testing Harley fuel injectors is a Dynojet Power Commander. This add-on computer connects in series between the ECM and the fuel injectors and allows you to program the map to your Harley. You can also use a personal computer to program a fuel map and monitor its results. You can download updated versions of the Dynojet Power Commander from their website.
After installing the new injector, you should check the injector feeding circuit by connecting a noid light to the harness. Noid lights are available for motorcycles at many auto parts stores. Make sure that you use the correct set. If there’s no noise, the injector is likely dead. Check the circuit for any shorts or bad connections before replacing it. Once you’ve checked your Harley’s fuel injectors, you can start a diagnostic process to determine if yours are broken or need replacement.
Visually inspecting the fuel spray
If you’re unsure whether your Harley fuel injectors need cleaning, there are a few easy ways to find out. Fuel spray is an indicator of the overall health of a fuel injector. A solid spray pattern is an indication of a clogged or dirty injector. If the spray pattern is inconsistent or erratic, there could be a problem with a component inside the injector.
To test the Harley fuel injectors, first remove the fuel rail sensor. It should be accessible under the hood of the motorcycle. Next, place the stethoscope earpiece against your ears and a long screwdriver tip against the injector body. You should also check for a dead injector. If the solenoid has been damaged, then it is time to replace it.
If you find heavy deposits on the injector, it’s time to change the Harley fuel injectors. Although this may improve their function, it won’t solve the issue. Heavy deposits, on the other hand, might indicate that your fuel grade is not good enough or that your injectors need to be replaced. If this doesn’t work, you can use the diagnostic tool provided by your local Harley Davidson dealer.
Another way to check the injectors’ performance is to visually inspect the spray pattern. Using a graduated cylinder, you can determine the amount of fuel being sprayed. Then, you can measure the flow rate by running a test called ASNU. This test goes through 10 different pulse rates and duty cycles. A basic test can take up to 30 seconds and involves three cycles of 3 seconds each.
Checking the valves
When the motorcycle is running poorly, the most obvious problem is probably the failure of the injectors. You can easily check the injectors yourself by following a few simple steps. Before you can start testing the injectors, make sure that your bike is turned off, and that you have a parking brake. Then, open the hood and use a stethoscope earpiece to listen to the injectors. When the injectors are energized, they emit a clicking noise. To do this test, you can buy a cheap mechanic’s stethoscope or use a thin hose.
To test the injector feeding circuit, you can connect a noid light to the connector of the injector. You can find a set of these lights at an auto parts store. Make sure to buy the right one for your vehicle, as some injectors use different wires. Once you have confirmed that the injectors are not getting power, you can proceed to check the rest of the wiring on the injector.
First, disconnect the electrical plug from the last fuel injector. Make sure that the terminal is free of moisture and corrosion. You can use a small wire brush to clean the contacts. If they’re still dry, apply dielectric grease on the connector. Next, reconnect the plug. Then, touch the tip of the screwdriver to the end of the injector to detect a pulse. If it doesn’t produce a pulse, you need to replace it.
Another way to check the valves is to replace the fuel injectors. There are many types of fuel injectors, but the most common is the high-pressure type. Fuel injectors require the correct amount of fuel and air. If the fuel flow is not the right mix, your Harley may not run properly. To ensure the correct fuel/air ratio, you must make some modifications to the fuel map.
Checking the return spring
If the resistance level at the injector is very high or too low, the return spring could be clogged or damaged. If the resistance level is too low, the injector could be dead, and a new one should be purchased. Checking the return spring is an important part of fuel injector testing, and you should not attempt to diagnose the problem without a multimeter. This will only make matters worse.
To check the return spring, you must first open the engine. If you can’t reach the return spring, you need to remove the fuel injector and check the springs. A broken spring could be a sign of a faulty return spring, so be sure to inspect the spring before replacing it. If you do not find it, you should call a mechanic and request a replacement. Harley-Davidson will send you a new fuel injector for free if the return spring is broken.
To test a Harley fuel injector, you can use a mechanic’s stethoscope or a length of hose. When the valve opens, you should hear a clicking sound. If the injector is clogged, it won’t spray any fuel. You can also use an ohmmeter to check if the coil is open or shorted.
Before you can test Harley fuel injectors, you must check the return spring. It is a vital part of the fuel system, and it’s easy to check with the proper tools. You can buy special tools for this purpose, but you will need specialized knowledge and tools. If you do not have any of these tools, you should call a service shop to check the system. This is an important step in troubleshooting EFI injectors.
About The Author
Mindy Vu is a part time shoe model and professional mum. She loves to cook and has been proclaimed the best cook in the world by her friends and family. She adores her pet dog Twinkie, and is happily married to her books.