i was wondering if anyone with an s4 tII could help me out and swing on by to my place so i can test his/her ecu, coil and igniter, and fuel injectors versus mine. the car's stumbling a bit and id like to get it to stop.

thanks

 

i know this is late but could be the 3800 rpm hesitation.
tps sensor adjustment
plugs/wires????? idk just a few things to go down the list with

 

it was the primary injectors

 

where u live?