Having trouble with no spark in my s15 so car wont start. Iv narrowed it down too the brown relay behind my ecu not closing.If i hold it closed by hand it will start but other than that it wont.I tried two other ecus also but no use.there is 24v on one pin on either side of the relay with the ignition on..any other cause of this relay not working? Was sure it would be a ecu faulty.thanks in advance