Cranks over but no fire. Quick Check with test light found cylinder one Glow plug open circuit and Glow plug Resistor open circuit Performed voltage test and resistance on all other glow plugs over 1.0 Ohm Found vehicle has VSP PT152 Glow plugs installed.Tested both glow plug relays resistance and voltage test passes with no defect. so I need some help with parts sourcing Glow Plugs and A Resistor Part Numbers, price, availability, OME, or Bosch, Japan.. ?? HELP PLEASE