Hi,

Ford Focus 2003 1.8 tddi Intercooler.

Engine sometimes splutters and sometimes cuts out, and then will restart after ignition switch cycled. Seems to worse during wet weather (clue?).

Only recent diagnostic messages relate to low battery volts.

However, battery and alternator output are OK whenever I manually measure them. Battery connections, earth points and main fuses & relays all cleaned and vaselined

Where are the voltage sensor and voltage regulator located ?

Thanks in advance for any assistance