Fixing Evinrude ETEC: No EMM Power and No Fuel? Learn How Here!
Table of Contents
- Introduction
- Background and Story
- Issue #1: Dead EMM (engine control module)
- Symptoms
- Solution
- Pros and Cons
- Issue #2: Faulty VST (vapor separator tank)
- Symptoms
- Solution
- Pros and Cons
- Troubleshooting Without Software
- Importance of Software
- Alternative Methods
- Performing Basic Checks
- Checking Wiring and Fuses
- Testing Spark and Fuel Pump
- Fixing the E-Tec: Step-by-Step Guide
- Replacing the EMM
- Upgrading the VST
- Proper Hose Clamps
- FAQs
- Can I troubleshoot an E-Tec without software?
- How much do E-Tec parts cost?
- Are E-Tec motors hard to find?
- Conclusion
🔧 Fixing Common Issues with E-Tec Boat Engines
Introduction
If you own an E-Tec boat engine, you know how frustrating it can be when it suddenly refuses to run. Unfortunately, there is a lack of information and resources available, especially for larger E-Tec engines. In this article, we will address the most common issues faced by E-Tec owners and provide step-by-step solutions for troubleshooting and fixing these problems. Whether you have a dead EMM or a faulty VST, this guide will help you get your E-Tec back up and running smoothly.
Background and Story
Let's start with a brief background and the story behind our exploration into fixing E-Tec engines. The author recently purchased a used Evinrude E-Tec 90 from Facebook Marketplace, which was supposed to be in good working condition. However, upon bringing it home, the engine proved to be completely dead. This prompted an extensive journey of troubleshooting, researching, and finally finding the solutions to make the engine run again.
Issue #1: Dead EMM (Engine Control Module)
Symptoms
Upon inspecting the engine, the first noticeable issue was the lack of any lights on the EMM. The EMM is the engine control module or computer that controls various functions of the engine. The absence of the three red lights when turning the key indicated a malfunctioning EMM. Additionally, there was no spark and only the mechanical fuel pump seemed to be functioning.
Solution
To fix this issue, the author had to replace the EMM. However, replacing the EMM meant also reprogramming the injectors or buying a used set already matched to the computer. After installing the new EMM, the engine had spark, and with some priming, it would crank and run for a short period.
Pros and Cons of Replacing the EMM
Replacing the EMM can be an expensive endeavor, with the EMM itself being a significant investment. If opting for a used pair of EMM and injectors, compatibility becomes a concern. On the positive side, a properly functioning EMM ensures the smooth operation of the engine, allowing for a reliable boating experience.
Issue #2: Faulty VST (Vapor Separator Tank)
Symptoms
Despite fixing the EMM issue, the engine still couldn't run smoothly. The next problem to troubleshoot was a lack of fuel. Through careful inspections and voltage checks, it was determined that the fuel pump was not working correctly. Upon disassembly, the pump was found to be clogged with rubber particles, causing it to lock up and fail.
Solution
To resolve the fuel pump issue, the author replaced the VST with an updated version. While the original VST had a visible pump, the new design concealed the electric fuel pump inside the canister. This replacement required being cautious about hose compatibility and considering the use of high-pressure hose clamps.
Pros and Cons of Upgrading the VST
Upgrading the VST offers improved functionality, including better cooling of the fuel and enhanced performance. However, it might require replacing hoses and potentially using specialized high-pressure hose clamps. Although this replacement is recommended, it's important to ensure proper compatibility and installation.
Troubleshooting Without Software
While many sources insist on the necessity of software for troubleshooting E-Tec engines, the author found that it isn't always indispensable. Basic mechanical understanding and alternative methods can help diagnose and fix issues without relying on software.
Performing Basic Checks
Before considering more complex solutions, it is essential to perform basic checks to rule out any straightforward problems. These checks include inspecting wiring and fuses, testing spark, and checking the fuel pump's functionality.
Fixing the E-Tec: Step-by-Step Guide
To fix the common issues faced by E-Tec engines, follow this step-by-step guide:
- Replacing the EMM: Remove the old EMM and replace it with a new or used pair that is compatible with the engine and properly programmed.
- Upgrading the VST: Remove the old VST and replace it with an updated version to enhance fuel flow and prevent clogging issues.
- Using Proper Hose Clamps: While the ideal choice is high-pressure hose clamps, they may not always be available. In such cases, use appropriate alternatives or upgrade to high-pressure clamps later.
FAQs
Q: Can I troubleshoot an E-Tec without software?
A: Yes, certain issues like dead EMM or faulty fuel pumps can be diagnosed and fixed without software. Basic mechanical knowledge and alternative methods can be sufficient.
Q: How much do E-Tec parts cost?
A: E-Tec parts can be expensive, with the EMM being one of the costliest components. However, purchasing used parts or finding good deals can help reduce expenses.
Q: Are E-Tec motors hard to find?
A: E-Tec motors are not as widely used as other brands, but they can still be found through online marketplaces or specialized marine suppliers.
Conclusion
Fixing common issues with E-Tec boat engines doesn't have to be a daunting task. By understanding the symptoms, following the step-by-step guide, and utilizing basic troubleshooting skills, E-Tec owners can restore their engines to optimal performance. Remember to perform thorough checks, seek proper replacements, and consider seeking professional help when necessary. With persistence and the right approach, your E-Tec engine will be running smoothly once again.
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