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Harley EITMS Problems: Signs, Fixes and More

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Navigating the complexities of your Harley’s Engine Idle Temperature Management System (EITMS) can be a daunting task for even the most seasoned riders.

From sputtering rides to sudden power losses, Harley EITMS problems are a pain point for many bike enthusiasts globally. But worry no more! Whether you’re trying to decipher the signs of an underperforming EITMS or fishing for a surefire fix – this comprehensive guide has got you covered.

Get under the hood with us as we unravel the mysteries of ‘EITMS Harley’, shedding light on everything you need to know to keep your beloved Harley running smoothly. Let’s get rollin’!

What Does Harley’s EITMS System Do? What Does It Stand For?

The Engine Idle Temperature Management System (EITMS) is a unique feature found in Harley-Davidson motorcycles. As the name suggests, this system is engineered to manage the engine’s temperature, especially during idle conditions or traffic congestion.

When the engine temperature hits a specific point, EITMS disables the rear cylinder fuel injector, causing the rear cylinder to function as an “air pump,” aiding in cooling the engine. However, the idle speed is sustained. The system activates under several conditions, including when the engine temp exceeds 287°F, the throttle is at idle, and the vehicle speed is under 1 mph with an engine speed under 1200 RPM.

Here's a picutre showing the location of the EITMS sensor on most Harley motorcycles.

What’s The Benefit of Harley’s EITMS System?

This ingenious system steps up when your Harley idles in the sweltering heat or gets stuck in sluggish traffic. By smartly managing the engine’s temperature, EITMS prevents overheating. The system reduces the heat radiating towards you and your passenger, making those long rides in high temperatures more bearable.

Related article: Harley Breather Bypass

Is It The Same As Harley’s Parade Mode?

The EITMS system is often confused with Harley’s Parade Mode, but they are indeed different. Parade mode, a feature in older Harley-Davidson models, was designed to protect the engine from damage due to overheating during prolonged idling or slow riding, like in a parade. On the other hand, the EITMS, a more advanced feature found in newer models, focuses on enhancing rider and passenger comfort by reducing heat radiation from the engine.


Most Common Harley EITMS Problems

Various EITMS-related problems can occur, disrupting the smooth operation of your Harley-Davidson motorcycle. Let’s delve into these issues, how to recognize them, and how to fix them.

1. EITMS Not Engaging Properly

One of the common harley eitms problems is the system not engaging correctly. This issue might arise due to various reasons, including a malfunctioning sensor or the EITMS being accidentally disabled.

Diagnosis

To diagnose this problem, observe your motorcycle’s behavior in conditions where the EITMS should activate, such as during prolonged idling in hot weather. If the system doesn’t engage, there’s likely an issue.

Solution

First, check if the EITMS is enabled. If the system is on and still not engaging, it’s advisable to consult a professional mechanic or a Harley-Davidson dealership for further assistance.

Related: Harley Speed Sensor Symptoms Get Revealed (+ Easy Fixes)

2. Motorcycle Stalling

Another issue related to the EITMS is the motorcycle stalling when the system is engaged. This problem can be a safety concern, especially in heavy traffic.

Diagnosis

If your motorcycle stalls during idle or slow speeds and the EITMS is engaged, this could be the underlying issue.

Solution

One solution to this problem is to disengage the EITMS. However, it’s best to consult with a qualified mechanic or a Harley-Davidson dealership to address this issue appropriately.

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Can Harley EITMS Be Disabled?

Yes, the EITMS on a Harley-Davidson motorcycle can be disabled by the rider. The system is usually disabled when delivered from the factory. However, it can be enabled or disabled according to the rider’s preferences.

Signs The EITMS System is Disabled Already

If the EITMS system is disabled, the motorcycle will not exhibit the typical signs of the system’s operation, such as the change in idle cadence or the distinct exhaust odor.

Will The EITMS Set Off A Check Engine Light?

While not common, in some instances an EITMS fault will trigger a check engine light. However, in most cases there’s a larger electrical issue at hand that triggered the check engine light. Normally, the EITMS is easily toggled on and off and will not trigger the light.

How To Turn Off EITMS On Harley Motorcycles

To turn off the EITMS on a Harley-Davidson motorcycle, follow these steps:

  1. Turn the ignition switch to the ON position and push the engine OFF/RUN switch on the right handlebar to the RUN position (ensure the motorcycle engine is not running).
  2. Push the throttle to roll­off position and hold.
  3. After approximately 3 seconds, the cruise indicator lamp will flash. If the lamp flashes red, it means the EITMS is disabled.

This setting will remain in effect until it is changed by the rider or dealer.

infotainment system on a harley davidson motorcycle showing that the EITMS system is enabled

To enable the EITMS feature:

  1. Follow the same steps as above.
  2. After approximately 3 seconds, the cruise indicator lamp will flash. If the lamp flashes green, it means the EITMS is enabled.

Remember, even with the feature enabled, it may not activate under cool riding conditions.

More tech talk: Harley Davidson Speedometer Not Working? Read This, Trust Me

What Are The Pros and Cons of The EITMS System?

The EITMS system in Harley-Davidson motorcycles has its advantages and disadvantages.

Pros:

  • It helps to cool down the engine, thereby preventing overheating issues.
  • It enhances rider and passenger comfort by reducing heat radiation from the engine.

Cons:

  • It can cause the motorcycle to stall.
  • Some riders report a difference in the idle cadence and a unique exhaust odor when the system is engaged.

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In this section, we answer some of the frequently asked questions about the Harley EITMS system.

What does EITMS stand for?

EITMS stands for Engine Idle Temperature Management System. It’s a feature in Harley-Davidson motorcycles designed to manage the engine’s temperature during idle conditions or traffic congestion.

How do I know if EITMS is enabled or disabled?

To check the EITMS setting, turn the ignition switch to the ON position and push the engine OFF/RUN switch on the right handlebar to the RUN position (do not start the motorcycle). Push the throttle to roll­off position and hold. After approximately 3 seconds, the cruise indicator lamp will either flash green (EITMS enabled) or red (EITMS disabled).

Can the EITMS be permanently disabled?

Yes, the EITMS can be permanently disabled by the rider. However, it’s worth noting that this system serves to manage the engine’s temperature and enhance rider comfort, particularly in hot weather or during prolonged idling.

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Wrap-Up

The Engine Idle Temperature Management System (EITMS) is an innovative feature in Harley-Davidson motorcycles aimed at enhancing rider comfort and managing the engine’s temperature. However, it can present certain challenges. By understanding these harley eitms problems, their signs, and how to address them, riders can ensure a smooth and enjoyable ride. Remember, if a problem persists, it’s always wise to consult with a Harley-Davidson dealership or a qualified mechanic.

Next read: Harley Oil Breather Problems? I Have The Answer!