Quick question guys, I have a evo 9 and I am converting over to SD. Do I wire the IAT sensor to the fuel temperature pin in the ecu and the other wire to ground or do I wire it to the MAF harness? I searched but am still confused. thanx

 

You can wire it to the fuel temp input or the regular IAT input (at the ecu or maf). You just have to tell the ecu the input you used in the speed density settings. Basically you have options, which is good.