Installing Ethanol Sensor and other setup questions Evo VIII G4X

[AGalecki]

Looking at installing my Link G4X and have a few questions.

Under 1.2.2.1 of the instructions "This means that the ECU is plug-in compatible with factory fitted injector combinations on all models. DO NOT remove the factory fitted ballast resisters."

- I am currently running High impedance injectors and have a resistor pack. Do I leave this or remove the resistor?

 

I purchased an extra loom to run my GM Ethanol Content Analyzer and found basic diagrams but not sure how to wire it in.

Not sure which wire would be ideal for the Digital Input on the loom?

Assume tie in the ground to expansion 9?

Then run the power wire to an accessory 12V switch off a fuse box?

 

I also have a plug in harness that was made to run a DBW throttle body, not sure which expansion port would be ideal?

[Adamw]

For factory low impedance injectors you need to keep the ballast resistor in place, if the injectors have been replaced with high impedance then you need to remove/bypass the ballast. 

I would expect your "e-throttle loom" would plug into the expansion socket that has Aux9/10 on it. 

For the ethanol sensor you will use the other one which has 3 DI's on it.  The sensor requires 3 wires, Gnd, a DI and Ign switched +12V.  The expansion loom has the ground and DI so they can run straight to the sensor, the 12V supply you will need to find yourself.  It only uses very low power so you dont necessarily need a dedicated fuse etc, often you can just tap into whatever is nearby - O2 sensor, Idle valve, fuel pump relay, MAF etc.