well here goes my audi a3 1.8 20v turbo started running a bit crappy when ticking over a bit like a shudder now and again .but when driving it was fine . then it started afecting it when i was driving dont no how to word it but it was like it was having the fuel cut off then fuel came threw surpose hesertant would be the word .but now i have almost no power and when i stop the revs drop down from 1 notch under 1rpm to about the 3rd notch up from the bottom of the rev counter think that would be 300rpm and its virtuly about to cut out.when i start to pull of it jumps and jerks like when your 12 and learning to drive and carnt control the clutch thats the only way to explain it really.
right just so you know i changed the plugs iv changed the maf and iv cleaned the throttle body and all that made it worse bit by bit till the point im at now.
but here is the massive problem. i took it to a friends garage he has a snap on diagnostic machine we planed to plug it but found that the ecu plug where you plug in the diagnostic plug. had been cut off please help plugging it in is out of the question unles someone on here could tell me how to rewire the 4 wires 1 red white 1 grey and white then 2 solid browns i dont know where the browns go
any help would be great thanks dave please help