hdi fault code help anyone

[Carlos vinyls]

i got my dad in to 306s now he went and got a hdi it got two fault codes come up one is
p0560 system voltage
and the other one is
p0380 glowplug/heater ckt
also theres no power in the injectors

[Poodle]

Voltage will either be your battery or a bad earth, the ecu considers this a serious enough issue to prevent starting, so you wont see voltage to the injectors until you fix the problem. Try it with a known good battery amd see how you get on. Dont worry about the glowplug circuit too much for now, the engine doesnt need them to run.

[Carlos vinyls]

Thanks I give it ago