Chris Bell Posted August 16, 2010 Report Share Posted August 16, 2010 Hi guys just joined the forum as I finally got a link! I am having one problem though, I am using an electric fan but when the fan turns on the car turns off :S I had the link installed and the wiring for the fan done by a shop, but the shop is abit far away and I know basic circuitry so I want to have a go at fixing it myself. Iv attached an image of the diagram just wondering if anyone can see the problem. Thanks Quote Link to comment Share on other sites More sharing options...
Rod Smart Posted August 16, 2010 Report Share Posted August 16, 2010 As per Page 18 of http://www.linkecu.com/support/documentation/g4-engine-management-documentation/G4Install You'd wire the connection '+ECU' to +12V (Battery) I don't know why the connection of the left side of the relay (+ECU) is connected to any point on the ECU, the current draw of the fan could give too much voltage drop to the ECU and cause the ECU to shut down.. Quote Link to comment Share on other sites More sharing options...
Chris Bell Posted August 16, 2010 Author Report Share Posted August 16, 2010 Thanks man and what about the ecu signal does that now go to where +12v was? Quote Link to comment Share on other sites More sharing options...
seized Posted August 16, 2010 Report Share Posted August 16, 2010 No, the wire you have labelled 'ECU-' would go to whatever pin you want to be the output. So one of the Aux output pins. The wire labelled '12V Constant' is correct. Note that you want a fuse between the relay and the battery. Quote Link to comment Share on other sites More sharing options...
Chris Bell Posted August 17, 2010 Author Report Share Posted August 17, 2010 Thanks for the help guys I should have put IGN power on the ecu + label, I just had to swap the IGN and 12v wired around and now it works sweet stupid shop haha Quote Link to comment Share on other sites More sharing options...
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