Daewoo problems

Daewoo Lanos

Turns the key and nothing happens, cranks only after jiggling the shifter, or dies while driving and will not restart 1999–2002 Daewoo Lanos

Daewoo Nubira

Shudders when accelerating, or a P0300 misfire code with fuel trims far off 1999–2002 Daewoo Nubira