jahjah Posted May 8, 2009 Report Share Posted May 8, 2009 I'm looking to know exactly what I'm doing before i start my rewiring job, what does Mitsubishi consider the "main" relay? and where is it located? I know Toyota calls it a circuit opening relay... but i can't seem to find it. Link to comment Share on other sites More sharing options...
BOHO Posted May 9, 2009 Report Share Posted May 9, 2009 Kyle..are you talking about the relay for your computer supply? I think most people consider it the main relay. its the "big" relay next to the heater box...If you take the glove box out you can see it. Link to comment Share on other sites More sharing options...
jahjah Posted May 9, 2009 Author Report Share Posted May 9, 2009 Kyle..are you talking about the relay for your computer supply? I think most people consider it the main relay. its the "big" relay next to the heater box...If you take the glove box out you can see it. yes! thanks! is that where your running your power line from? which wire is it? Link to comment Share on other sites More sharing options...
BOHO Posted May 9, 2009 Report Share Posted May 9, 2009 No...I was on my old car. The relay was bad on this car and I didn't feel like replacing it...lol...I ran a 10 ga power supply straight from the battery to a switch...the "main" toggle power switch gives power to a 6 prong fuse block..which I have injectors...fuel pump...computer...and some other stuff powered off of...the switch can handle 15amps...and I'm still below 10 for the whole block...so I don't worry about it much. Link to comment Share on other sites More sharing options...
slowquest Posted May 9, 2009 Report Share Posted May 9, 2009 I did basically the same thing, used the stock main relay at first, but have since changed it. I don't recall the wire colors off hand, but if you look at the stock wiring diagram, it's pretty straightforward. Link to comment Share on other sites More sharing options...
pure_insanity Posted May 10, 2009 Report Share Posted May 10, 2009 I did basically the same thing, used the stock main relay at first, but have since changed it. I don't recall the wire colors off hand, but if you look at the stock wiring diagram, it's pretty straightforward. any reason why you changed? Link to comment Share on other sites More sharing options...
jahjah Posted May 10, 2009 Author Report Share Posted May 10, 2009 Well i did some more looking and it looks like those were a ground, an O2 and a power wire from the relay. So i'm set to go, i just need to finish assembling my MS Link to comment Share on other sites More sharing options...
slowquest Posted May 10, 2009 Report Share Posted May 10, 2009 I had a problem with the fuel pump not running all the time, I thought it may be the relay, ended up being the daughter board on the MS. Link to comment Share on other sites More sharing options...
Indiana Posted May 11, 2009 Report Share Posted May 11, 2009 (edited) here you go http://www.b2600turbo.com/Wiring%20MSII.htm If you don't think that gauge wire is enough for your fuel pump you can still use this same wire to activate another relay. The point of using this control relay is so that if the engine stops running, the ECU deactivates this relay and you don't sit in a ditch knocked out and the motor dead and a cigarette burning in the floor and your fuel pump still running. Its a safety thing. Edited May 11, 2009 by Indiana Link to comment Share on other sites More sharing options...
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