My ford focus 2003 1.8 TDCI starts horrible when it is warm. The engine does not always fire 1st time and when it does, it sputters slightly. Cold starts are always fine. I checked the engine compartment relay/fuse box and it seems to be missing the relay and fuse for the "Glow Plug Heater 2". There are contacts inside the hole to take something. Being new to diesel, I am unsure. Any advice would be appreciated.
The splutter noise comes from between the engine and footwell.