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2005 expedition fuel pump3/30/2023 ![]() ![]() ![]() The ECM senses the RER/Start button or the recoil starter turning engine and magneto. 1 is activated when you push the RER/Start button or pull the recoil starter. can create issues with the electrical system and sometimes even the ECM if improperly installed. ![]() Devices such as Boondocker boxes, TFI, EGT gages, temp gages etc. I thought that also but a bad battery or connection will definitely affect engine performance.Īnother area that can affect performance relates to the grounding of additional devices and their power source. Now I am sure a lot of you are thinking if the motor is running it should not make any difference if the battery is bad since the engine generator is supplying electrical power through the rectifier/regulator. ![]() The next thing to check while you are looking at the battery is to make sure the ground cable and battery connections are tight. If voltage drops below 12.5 volts, you probably have a bad battery, fuel pump or short in wiring. Now hit the RER button (have kill switch activated on electric start model) with volt meter still attached. If voltage is less, you need a new battery. The battery voltage should be at least 12.5 volts (the shop manual says 12.8 volts). Check the battery voltage after running your sled for an extended period or after charging the battery. The first item I will discuss is the battery because it is easy to check and has a large affect on overall operation of the engine. I will start with the electrical due to it being the largest area. I will break down this information into three areas which are electrical, fuel and mechanical. As you can see, it is almost impossible to solve a given issue on the internet due to the complexity of the SDI system. I hope some of this information may help some of the Mach Z owners better understand this complex system and solve some issues. I have accumulated the following information over the last couple of years from playing with this difficult design. The performance inconsistencies of the 1000 SDI engine are very difficult to eliminate due to the vast amount of components and settings that affect final engine/transmission performance. Inconsistencies of the 2005 – 2007 Mach Z This post was put together by bluemax, posted by Jeb, and edited by moderators. ![]()
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