gasoline direct injection problems on these motors
internet search has reference to GDI no starts or poor running
the gdi sytem had a short life on all makers cars GDI Engine Complaints Often Mysterious Hard to Resolve
all i know is that the inlet ports can carbon up
and need to be inspected and de carboned
GDI engine concerns:
Higher cylinder temperatures and pressures released into the crankcase accelerate oil vaporization. Eventually this causes oil droplets to coat intake valves.
Cylinder injector spray position means fresh fuel is not sprayed onto intake valves and flush away vapor build up. This build up can accumulate and bake on intake valves in as little as 10,000 miles (16,000 km).
Rings can become stuck into their lands by carbonized oil sludge. This can prevent these engine’s low-tension rings from properly sealing the piston. This also causes sludge, oil, and fuel deposits to bake onto piston tops.
Since inception, GDI engines have had known problems with coking—buildup of cooked fuel deposits that foul injectors.