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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: 229847" data-attributes="member: 4617"><p>Soldered the wiring for the Speeduino to interface connector between the OEM harness and Speeduino. Interesting how the wires for the 40 pin IDC connector are so small, but the wiring harness has much larger wires, but it works. This change appears to help in smoothing out the engine idle.</p><p></p><p>There is a noticeable engine RPM change when the rad fan turns on. This is my next investigative project, the why?</p><p></p><p>The injectors being setup in sequential appears to be a benefit to the install.</p><p></p><p>Purchasing the components for the small add-on baro board. Thinking that using the MPX4250 component will be good. Small footprint allowing me to put this circuit board in the enclosure with the ECU and it has been recommended on other threads.</p><p></p><p>The new resistor pack is working well, a 6 ohm resistor per injector. Will mount where the OEM resistor pack is.</p><p></p><p>The engine stumble did not show its ugly head yesterday.</p><p></p><p>The MAP reading is still around 65/70 kPa, but the VE cell values are set at 40, progress on the VE mapping. The spark table cell values are set at 15, but can go down to 13. </p><p></p><p>Found an older thread that discusses the differences between Alternating and Simultaneous injector pulse widths on the Speeduino forum. Discusses the differences regarding Speeduino and the tuning software. Don't understand everything that's mentioned but will. Sequential ignition will probably not be done, but will look into benefits and what is needed to achieve this.</p><p></p><p>Looking at the other features/functions in engine tuning software for down the road.</p></blockquote><p></p>
[QUOTE="Rednaxs60, post: 229847, member: 4617"] Soldered the wiring for the Speeduino to interface connector between the OEM harness and Speeduino. Interesting how the wires for the 40 pin IDC connector are so small, but the wiring harness has much larger wires, but it works. This change appears to help in smoothing out the engine idle. There is a noticeable engine RPM change when the rad fan turns on. This is my next investigative project, the why? The injectors being setup in sequential appears to be a benefit to the install. Purchasing the components for the small add-on baro board. Thinking that using the MPX4250 component will be good. Small footprint allowing me to put this circuit board in the enclosure with the ECU and it has been recommended on other threads. The new resistor pack is working well, a 6 ohm resistor per injector. Will mount where the OEM resistor pack is. The engine stumble did not show its ugly head yesterday. The MAP reading is still around 65/70 kPa, but the VE cell values are set at 40, progress on the VE mapping. The spark table cell values are set at 15, but can go down to 13. Found an older thread that discusses the differences between Alternating and Simultaneous injector pulse widths on the Speeduino forum. Discusses the differences regarding Speeduino and the tuning software. Don't understand everything that's mentioned but will. Sequential ignition will probably not be done, but will look into benefits and what is needed to achieve this. Looking at the other features/functions in engine tuning software for down the road. [/QUOTE]
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Classic Goldwing Technical Forums
GL1200
1985 GL1200 Limited ECU Replacement/Upgrade - Part 2
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