DanDan Posted January 4, 2019 Report Share Posted January 4, 2019 Hi I was wondering if anyone can tell me how to wire up a Mitsubishi Evo 6 magnetic 3 pin speed sensor (see picture) to an Evo 1-3 Link G4+ ecu? I will be using DI 4 on the ecu if that's ok? I'm sure it has Pin 1 = 12v pin 2 = earth pin 3 = signal + 8v? But im not sure where to get the power from or what to do about the 8 volts to the signal Any help or advice would be appreciated Thanks Dan Quote Link to comment Share on other sites More sharing options...
Adamw Posted January 4, 2019 Report Share Posted January 4, 2019 I don’t have a pinout handy, but it should be 1 pin to 12v, 1 to ground, 1 to the DI. Quote Link to comment Share on other sites More sharing options...
DanDan Posted January 4, 2019 Author Report Share Posted January 4, 2019 Hi Adamw I did think that's how it was meant to be so I wired it up like that and plugged the laptop in to see if it was working and it didn't register anything. So I checked the plug on an Evo 4 with a volt meter and pin 1 was 12v pin 2 was earth and pin 3 had about 8v coming from it. So I'm not sure now and I can't seem to find any information out on google :( Thanks Dan Quote Link to comment Share on other sites More sharing options...
Adamw Posted January 4, 2019 Report Share Posted January 4, 2019 Did you have the pull-up turned on? Quote Link to comment Share on other sites More sharing options...
DanDan Posted January 4, 2019 Author Report Share Posted January 4, 2019 Yes I'm sure the pull-up resistor was on Quote Link to comment Share on other sites More sharing options...
Adamw Posted January 4, 2019 Report Share Posted January 4, 2019 Then you must have the pinout wrong, that should be all that is needed. You should be able to find a service manual online for this car no worries. Quote Link to comment Share on other sites More sharing options...
DanDan Posted January 5, 2019 Author Report Share Posted January 5, 2019 The pins should be correct as I have checked them on the Evo 4 as mentioned earlier. I even tried my sensor on his car and it works fine. So it can't even be the sensor. It's strange how the sensor wire on the Evo 4 has about 8v to it when the ignition is on. How I think the sensor works is that it has voltage to it and as the sensor turns it lowers/drops the voltage but I'm not 100% sure. i know a hall sensor just has 12v, earth and a signal wire to work but I'm sure the magnetic speed sensors work differently? could I do any damage to the ecu if I put a 5v feed to the signal wire to see if it would work? Quote Link to comment Share on other sites More sharing options...
Richard Hill Posted January 5, 2019 Report Share Posted January 5, 2019 Yes, that pinout looks correct, have you tried the following (no pull-up, the base map for the car with your sensor has pull-up off, but the 1-3 has pull-up on) Mitsubishi EVO 1-3 G4+ Xtreme Plugin.pclr Mitsubishi EVO 4-8 G4+ Xtreme Plugin.pclr the speed signal pin for your ECU is 66, (as opposed to pin 86 on the 4-8) HTH, Richard. Quote Link to comment Share on other sites More sharing options...
DanDan Posted January 6, 2019 Author Report Share Posted January 6, 2019 Hi Richard Thanks for your reply as I didn't notice the difference when I was looking between both the Evo 1-3 and the Evo 4-7 files. Ive been in the garage today and roughly wired up the sensor again as I had before but changed the DI 4 pull-up resister from ON to OFF and it has sorted it. It's all wired up properly now and working as it should Now hopefully I can finally get my car mapped and enjoy it this year fingers crossed. Thanks for all your help Adamw and Richard hill Thanks Dan Quote Link to comment Share on other sites More sharing options...
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