p1019 harley code

P1019 Harley Code: The Shocking Truth About It

If you own a Harley, you may have experienced the P1019 Harley code along with a check engine light and high-temperature warning. This code is related to the cooling system and could be occurring due to a variety of issues, including sensor faults, dirty radiators, low coolant levels, or faulty pumps.

When the P1019 code appears, it is important to fix the issue quickly to avoid further damage to your motorcycle. Ignoring the warning signs can lead to overheating, engine damage, and costly repairs. Luckily, there are steps to take to diagnose and fix the problem.

In this article, we’ll explore the common causes of the P1019 code and provide tips for troubleshooting and repairing your Harley-Davidson motorcycle. Regardless if you’re a new rider or an experienced mechanic, this guide will help you understand the warning signs and take action to keep your motorcycle running smoothly.

What is P1019 Harley Code?

If you own a Harley Davidson motorcycle, you may encounter the P1019 code. This code is related to the engine’s cooling system, and it can be triggered by a variety of issues. When the P1019 code appears, it will usually trigger a check engine light and a high-temperature warning light.

The P1019 code is related to the engine’s coolant pump. If the pump is not working properly, the engine might overheat, and when that happens, it can get quite serious. The code can also be triggered by a faulty coolant temperature sensor, a dirty radiator, or low coolant levels.

Riding with an overheating engine can cause serious damage to your motorcycle, and it can even be dangerous. If you’re not sure about diagnosing and rectifying the issue yourself, it is best to take your Harley to a qualified mechanic.

Symptoms of P1019 Harley Code

Engine Misfire

One of the first symptoms I’d like to mention of the P1019 Harley code is engine misfire. This happens when the engine is not firing on all cylinders, which can cause the engine to run rough or even stall. The misfire may be felt as a hesitation or jerk while driving, and the Check Engine Light (CEL) may also be illuminated.

When the engine misfires, it’s usually caused by a faulty spark plug, a clogged fuel injector, or a vacuum leak. It’s important to have the code diagnosed to figure out the exact cause of the misfire.

Reduced Engine Performance

Another symptom of the P1019 Harley code is reduced engine performance. The engine may not be able to produce as much power as it should, which can result in slower acceleration and reduced top speed due to a clogged air filter, a faulty oxygen sensor, or a malfunctioning throttle position sensor.

In addition to reduced performance, the engine may also run hotter than normal. This might be because of a bad thermostat or a low coolant level. 

Overall, if you are experiencing any of these symptoms, it’s important to have the code diagnosed by a professional mechanic. They will be able to determine the exact cause of the issue and recommend the necessary repairs to get your Harley back to optimal performance.

Causes of P1019 Harley Code

When a Harley-Davidson motorcycle displays the P1019 code, it means that there is an issue with the engine’s Valvetronic Eccentric Shaft Sensor. Several factors can cause this problem, including:

Faulty Ignition Coil

A faulty ignition coil can cause the P1019 Harley code to appear on your Harley-Davidson motorcycle. The ignition coil is there to generate the electrical current that powers the spark plugs. If the ignition coil is defective, it can cause the engine to misfire, which can trigger the P1019 code.

Defective Spark Plug

Another possible cause of the P1019 code is a defective spark plug. Spark plugs basically ignite the fuel in the engine’s combustion chamber. If a spark plug is faulty, it can cause the engine to misfire, which can trigger the P1019 code.

Faulty Fuel Injector

A faulty fuel injector can also cause the P1019 code to appear on your Harley Davidson. Fuel injectors are there to deliver fuel to the engine. If a fuel injector is faulty, the engine can run lean or rich, which will end up triggering the P1019 code.

The P1019 code is an indication that there is an issue with the engine’s Valvetronic Eccentric Shaft Sensor. Faulty ignition coils, defective spark plugs, and faulty fuel injectors are some of the possible causes of this problem. 

Diagnosis of P1019 Harley Code

When the P1019 code appears, it means that the engine control module has identified a problem with the coolant pump circuit. It could be caused by a malfunctioning coolant pump, a faulty coolant temperature sensor, or a wiring issue. 

The following steps can be taken to diagnose the P1019 Harley code:

  • Check the coolant level: Low coolant levels can cause the coolant pump to malfunction. Check the coolant level and add some more if required.
  • Inspect the coolant pump: The coolant pump should be checked for any signs of damage or wear. If it is faulty, it should be replaced immediately.
  • Test the coolant temperature sensor: The coolant temperature sensor should be tested using a multimeter. If it is faulty, it should be replaced.
  • Check the wiring: The wiring should be checked for any signs of damage or corrosion. If there are any issues, the wiring should be repaired or replaced.

If the above hasn’t yet resolved the issue, it is recommended to take the motorcycle to a certified Harley-Davidson dealership for further diagnosis and repair. They have the necessary tools and expertise to diagnose and repair the issue correctly.

How to Fix P1019 Harley Code

Fixing the P1019 Harley code requires a thorough diagnosis of the problem. Here are some steps to follow:

  1. Check the engine coolant level: Low coolant levels can cause the engine to overheat and trigger the P1019 code. Top up the coolant level if it’s low.
  2. Inspect the engine cooling system: Check the radiator, water pump, and hoses for leaks, cracks, or other damage. Replace any damaged parts.
  3. Test the engine coolant temperature sensor: Get a multimeter and test the resistance of the sensor. If the resistance is out of spec, just replace it.
  4. Check the thermostat: A faulty thermostat can cause the engine to overheat. Remove the thermostat and test it in boiling water. If it doesn’t open or close properly, replace it.
  5. Inspect the engine fan: Check the fan blades for damage and test the fan motor. If the fan isn’t working properly, replace it.
  6. Inspect the engine wiring harness: Check the wiring harness for damage or loose connections. Repair any damaged wires or connectors.
  7. Clear the code: After fixing the problem, you can go ahead and clear the code using a diagnostic scanner. If the problem has been fixed, the code should not return.

Final Verdict On The P1019 Harley Code

In conclusion, the P1019 Harley code is related to the cooling system. There are quite a few things that can cause these issues, such as a faulty coolant pump, low coolant levels, or a dirty radiator. If you experience this code, get it to a mechanic or fix it yourself quickly to prevent further damage to your bike.

Ideally, the best way to go about it is to take your Harley to a trusted mechanic to fix the issue. They can use diagnostic tools to pinpoint the root cause of the code and make the necessary repairs. It is not recommended to try to fix this issue yourself, as it can be complex and require specialized knowledge and tools.

Regular maintenance of your motorcycle’s cooling system can help prevent the P1019 Harley code from occurring. Make sure to check the coolant levels regularly and have the system flushed and refilled according to the manufacturer’s recommendations. Additionally, keeping the radiator clean and free of debris can help ensure proper cooling and prevent overheating.

In summary, the P1019 Harley code is a warning sign of potential cooling system issues. If you experience this code, seek professional help to diagnose and repair the issue promptly. Regular maintenance of your cooling system can help prevent this code from occurring and save you from a massive headache.

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