i have a 1990 karmann cabby and it has started giving me problems starting, it has has a new fuel pump and was running fine but now i can only get it started with easy start into the air intake and as soon as this is used it stops , i think i may have to replace the fuel pump relay , i picked up a 167 but on looking i dont have one in my fuse box so does anyone know which relay i need to change, it has jetronic on the ecu , thanks rich