can spark be affected by a bad main relay on a 91 integra?

natt2000

New Member
i have a 91 integra with no spark. i was wondering, does the ecu led light up when the ecu is powered up? and would a bad main relay affect the ignition if it went bad?
 

emd513

New Member
yes and yes it can. ohm your relay and make sure it is bad before you go replacing. test your dizzy the same way.
 
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