jimnco

Hi I have bought a 96uk classic turbo wagon as a bit of a project & so i can get to know the impreza before i start buying newer n better scoobys
anyway the car had loads of little probs when i bought it like suspention springs were cut calipers were stuck, cv boots were damaged ive now sorted them out but the abs ring on o/s/f is broke and sensor is missing i was just wondering would that put the car in limp mode as it has a boost problem goes to 4 somtimes 5k and starts to judder it not voilent as such more like driving with the choke on it only does it if i floor it (well try to) tho... the ABS dash lite is on but no CEL also ive rest ecu & there is no errors showing

any help would be great