It happened even after running ethanol-free gas almost 80% of the time.Īfter a thorough checkup in the servicing shop, the mechanic found that there was a leak in the vapor separator.įor a safe and permanent solution, he added seafoam, replaced the faulty vapor separator, and changed the main fuel line along with the primer bulb. The problem was sorted out for the time being. However, after a second check-up, the mechanic found out that the motor was maxed out at 4600 RPM. Then, running a $900 computer test, showed no error codes only the max RPM is lower. When the customer changed his 23” propellers with a 19” one and used quickleen, the performance improved dramatically. He noticed 5400 RPM while going into the wind and 5300 RPM against.įurthermore, one should check the coil and other engine parts for this issue. Finding any corroded or clogged part needs to be cleaned or replaced for better speed and smooth performance. 2. Electrical Issuesĭue to the problem in the electrical system, you may notice some unusual warning messages on the dashboard. One of the users mentioned that he suddenly saw Temp fault, oil level fault, TPS fault, mat fault, sensor fault, and some other warning signs going off all at once. Sometimes changing the connections and cleaning the plugs can solve the issue. And, sometimes the problem continues to occur. In such a situation, you should read the owner manual carefully and see whether the settings are in the right mode. I have seen a user telling complaining about getting lower voltages down to 1V messing up the sensors. It is kind of similar to the previous one. MERCURY 150 FOUR STROKE ECU FLASH MANUAL.It is advised that you do pre-flash testing so you can determine the amount of change in fuel economy and speed that have been been achieved from your Nizpro Tune.Ĭheck fuel numbers (GPH) and speed at 3,000/4,000/5,000 and WOT before and after the Tune. Depending on the HP you started with you may need to make bigger pitch changes to your prop to get closer to your target rev limit. Results can vary for every application due to differences in vessel weights, hull design, altitude, engine height, prop pitch and efficiency. If your boat is not reaching its full range of rpm at WOT beforehand of 6,000 - 6,200 rpms (This varies with load, temperature and altitude) before a Flash then you may have need of getting your boat dialed in after the Tune with the proper engine height adjustment and by using the correct prop with necessary cupping and pitch in order to achieve the most efficiency from it. To get the process started just add the correct Tune option to your cart and check out and then include your information in the box with your ECU.Īttention: Please Read prior to purchasing the Nizpro Powering Service and call if you have questions: A Nizpro Tune cannot compensate for a poorly running engine if there are other factors causing a loss of performance that need addressed first. This will not change your engine hours and factory rev limit remains the same at 6,200 rpm. NOTICE: You are not purchasing an ECU but but an ECU reprogramming service by sending your ECU in to us.
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