zzzzed Posted November 17, 2012 Share Posted November 17, 2012 Hi guys I am trying to wire my fuel pumps in my rb20det powers Datsun 240z. They work if I send 12v straight to them from the battery, but I can't seem to get them working with a relay. I have flowed several different diagrams from Google with no luck. My main question is, is pin 18 on the rb20 ecu a trigger with +12v or earth. It currently has no power coming from pin 18. Just need to know its not fried. Cheers Mick. Quote Link to comment Share on other sites More sharing options...
zzzzed Posted November 17, 2012 Author Share Posted November 17, 2012 All is good. I worked it out Quote Link to comment Share on other sites More sharing options...
ihiryu Posted November 18, 2012 Share Posted November 18, 2012 It's grounded, for future reference, no ECU sends out a positive signal. It doesn't generate enough power to Quote Link to comment Share on other sites More sharing options...
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