I perform diesil engine tune up to avoid engine trubol
5a engine con/main/head torque specs 5a-fe engine
diesel engine tune up-valve adjustment,bleeding,on time method,change oil,change filter
5a-fe
you might have crossed up the plug wires.
The problem was not fixed with a tune up, or the light is on because it was not reset by the service station.
Your car needs a tune up or need a new engine. The air condition puts load on your engine and if it stalls then it needs a tune up.
Could be a misfire. In need of a tune up.
depends on the engine
check and adjust the valve clearance
Time for a tune up.
It means it probably needs a tune up.