Help anyone? ive got the old air bag failure warning and i know its from the passanger seat due to fiddling with the wiring. but i dont know if its the airbag or sensors, can anyone tell me what fault code reader i would need for a stilo 1.9jtd on an 02 plate? or would it be chaper to just replace the lot?

No readers can interpret Airbag codes. You need an Examiner (FIAT) or similar machine at a garage...