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FJR Motorcycle Forums
Technical & Mechanical Problems
No spark
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<blockquote data-quote="Donal" data-source="post: 1296071" data-attributes="member: 20675"><p>Have you used the diagnostic system to actually function test the coils?</p><p></p><p>Doctor Ionbeam's guide is <a href="https://www.fjrforum.com/forum//index.php/topic/9612-diagnostic-codes/?do=findComment&comment=117762" target="_blank">here</a>, diagnostic codes 30 & 31.</p><p></p><p>As I understand it the ECU grounds the coils, then isolates to produce a spark. Have you tried disconnecting the wire(s) from the coil to the ECU (at the coil) and doing this manually?</p><p></p><p>Seems odd to me that both coils would go out together......... I think I am with Denver_FJR on this. Confirm you have 12 volts at the 'other' side of the coil.</p></blockquote><p></p>
[QUOTE="Donal, post: 1296071, member: 20675"] Have you used the diagnostic system to actually function test the coils? Doctor Ionbeam's guide is [URL="https://www.fjrforum.com/forum//index.php/topic/9612-diagnostic-codes/?do=findComment&comment=117762"]here[/URL], diagnostic codes 30 & 31. As I understand it the ECU grounds the coils, then isolates to produce a spark. Have you tried disconnecting the wire(s) from the coil to the ECU (at the coil) and doing this manually? Seems odd to me that both coils would go out together......... I think I am with Denver_FJR on this. Confirm you have 12 volts at the 'other' side of the coil. [/QUOTE]
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FJR Motorcycle Forums
Technical & Mechanical Problems
No spark
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