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Classic Goldwing Technical Forums
GL1200
1985 GL1200 Limited ECU Replacement/Upgrade - Part 2
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<blockquote data-quote="Rednaxs60" data-source="post: 227935" data-attributes="member: 4617"><p>Good morning. The collective on the Speeduino forum is educating me in the finer details of initial ECU tuning. lots of info wherever you look for carbs, but not so much for an FI system.</p><p></p><p>Today's lesson is regarding the VE table and how injector pulse width (PW) is affected. The settings in the VE table relate to a change in PW - this is for Speeduino, don't know about the Squirt family or others. The larger the number the longer the PW, conversely the lower the number the shorter the PW. Once the PW is set and the engine idles smoothly, the programmed voltage correction adjusts the PW to suit. Reducing/increasing the PW changes the time fuel is injected into the cylinder. At lower RPMs and idle, only takes one injector to cause an engine stumble or stall.</p><p></p><p>Injector dead time is affected in the lower RPMs as well, but is not adjusted like the PW. You have to set the dead time in the TS software. </p><p></p><p>Today's trial will be to try and dial in some better VE/spark and injector dead time, primarily VE (PW) and dead time settings. </p><p></p><p>Once I have these settings better selected, may look at the running dwell time.</p><p></p><p>Coming to an understanding of the intricacies of ECU programming.</p><p></p><p>Have started to finalize the ECU and enclosure fitting. Looking pretty good. Going to fit for but not with wiring that I can use later should I want to install an oil/fuel pressure sensor. Fitting a fuel pressure sensor would be beneficial because I can use TS to check the fuel system static and dynamic pressure instead of having to drain the fuel rails every time I want to connect the fuel pressure gauge.</p></blockquote><p></p>
[QUOTE="Rednaxs60, post: 227935, member: 4617"] Good morning. The collective on the Speeduino forum is educating me in the finer details of initial ECU tuning. lots of info wherever you look for carbs, but not so much for an FI system. Today's lesson is regarding the VE table and how injector pulse width (PW) is affected. The settings in the VE table relate to a change in PW - this is for Speeduino, don't know about the Squirt family or others. The larger the number the longer the PW, conversely the lower the number the shorter the PW. Once the PW is set and the engine idles smoothly, the programmed voltage correction adjusts the PW to suit. Reducing/increasing the PW changes the time fuel is injected into the cylinder. At lower RPMs and idle, only takes one injector to cause an engine stumble or stall. Injector dead time is affected in the lower RPMs as well, but is not adjusted like the PW. You have to set the dead time in the TS software. Today's trial will be to try and dial in some better VE/spark and injector dead time, primarily VE (PW) and dead time settings. Once I have these settings better selected, may look at the running dwell time. Coming to an understanding of the intricacies of ECU programming. Have started to finalize the ECU and enclosure fitting. Looking pretty good. Going to fit for but not with wiring that I can use later should I want to install an oil/fuel pressure sensor. Fitting a fuel pressure sensor would be beneficial because I can use TS to check the fuel system static and dynamic pressure instead of having to drain the fuel rails every time I want to connect the fuel pressure gauge. [/QUOTE]
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Classic Goldwing Technical Forums
GL1200
1985 GL1200 Limited ECU Replacement/Upgrade - Part 2
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