hello guys for the past couple of weeks im been working on my project car
87 SE with 89 S5 TURBO,for me is the first time that i swap and s5 turbo on a s4 car.right now im confuse with this,on the s4 block under the alternator is the coolant sensor and a metal niple,on the s5 theres the sensor plus instead of a niple theres anothers sensor with this plug(see pic)i dont now were to conect the plug on s4 harness can anybody please help me thanks



PS
by the way im using the S4 N/A harness

 

What ecu are you using?

 

im running and s4 T2 ecu N333 with t2 map sensor t2 flow meter and the knock control box all emissions remove

 

It's for the auxillary electric fan that sits in front of the radiator.........on some cars. Ignore it if you don't have an electric auxillary fan.

 

thanks for the info hailers