Jerking
 

Hi all,

Just had teh car back with a new fuel pump fitted, thing is that the car is jerking really really bad when cold and now and again when warmed up could this be that the coil packs is knackard or sumthing else? the car is a 1996 wrx import with 52200 miles on the clock

What about checking the connections on the fuel pump?

connections are fine mate really do think its either the coil packs or the lam sensor

If the car was fine befor, and the only thing done was the pump then check it

Thing is mate the car was jerking a bit now and again b4 she went in for the pump, just seems a hell of a lot worse now for some reason

i would suggest looking at the coilpacks as you can do it yourself,maybe have a look at the plugs at the same time.
MAF perhaps?