thanks for the help

 

Thats the variable resistor. It adjusts air/fuel ratio and sends a signal to control unit. It is set by the factory and covered in a wax like substance so that it cannot be tampered. And it should stay that way. The manual lists this item as tamper-proof

 

Adjusting it will slightly change the Air/Fuel ratio at idle. But rotorforce is right you really dont need to play with it unless you know what you are doing.

 

ok so i wont remove it thanks

 

haha i tried tampering with mine and i was like WTF who poured epoxy in here? Haha.

 

so its only for the mixture at idle? or all around? where is this on s4 or s5? I don't remeber seeing this on my s5 n/a

 

s4