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Classic Goldwing Technical Forums
GL1200
Ignition Control Module (ICU) Replacement Project for the GL1200 non-FI models
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<blockquote data-quote="Rednaxs60" data-source="post: 230365" data-attributes="member: 4617"><p>Mike - easiest fix if the ICU goes south is to replace with an old identical PnP ICU. If you are adventurous, a new unit as I am mentioning. I am going to do a wiring diagram to indicate what I think the wiring should be for a Speeduino ECU that has the NO2C interface board, maybe a UA4C as well. Here is a picture of the size of the Speeduino NO2C in a case, small and compact:</p><p>[ATTACH]50209[/ATTACH]</p><p>Coil driver recommendation - Bosch 211 4 channel. Recommend changing out to this single unit because it is widely used. I have one on my '85 FI model using it for sequential ignition:</p><p>[ATTACH]50211[/ATTACH]</p><p>Crankshaft trigger wheel:</p><p>[ATTACH]50210[/ATTACH]</p><p>Hall effect sensor - Cherry GS100701:</p><p>[ATTACH]50212[/ATTACH]</p><p></p><p>The Hall Effect sensor needs 5VDC power and ground, both are from the ECU, The signal wire goes to the ECU, the board is configured for a Hall Effect sensor instead of a VR sensor, and it requires a 1K ohm pull-up resistor (should be on the board).</p><p></p><p>IAT/CLT sensors are from an '85/'86 GW FI model.</p></blockquote><p></p>
[QUOTE="Rednaxs60, post: 230365, member: 4617"] Mike - easiest fix if the ICU goes south is to replace with an old identical PnP ICU. If you are adventurous, a new unit as I am mentioning. I am going to do a wiring diagram to indicate what I think the wiring should be for a Speeduino ECU that has the NO2C interface board, maybe a UA4C as well. Here is a picture of the size of the Speeduino NO2C in a case, small and compact: [ATTACH alt="NO2C in Case.jpg"]50209[/ATTACH] Coil driver recommendation - Bosch 211 4 channel. Recommend changing out to this single unit because it is widely used. I have one on my '85 FI model using it for sequential ignition: [ATTACH alt="Bosch 211 Coil Driver .jpeg"]50211[/ATTACH] Crankshaft trigger wheel: [ATTACH alt="36-1 Trigger Wheel.jpg"]50210[/ATTACH] Hall effect sensor - Cherry GS100701: [ATTACH alt="Cherry Hall Effect Sensor.jpg"]50212[/ATTACH] The Hall Effect sensor needs 5VDC power and ground, both are from the ECU, The signal wire goes to the ECU, the board is configured for a Hall Effect sensor instead of a VR sensor, and it requires a 1K ohm pull-up resistor (should be on the board). IAT/CLT sensors are from an '85/'86 GW FI model. [/QUOTE]
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Classic Goldwing Technical Forums
GL1200
Ignition Control Module (ICU) Replacement Project for the GL1200 non-FI models
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