an 04 Kalos not starting

I have an 2004 daewoo kalos (16v e-tec) that has 177k km on it (109k miles) the car has had two owners only me and the one before me.

The car has been sitting there for quite sometime so after doing the regular maintenance check ups i realized the car cranks but won’t start.

So anyway i’ve pretty much replaced almost every part that the car needs to start and it still won’t start.

So far I’ve done:
Replaced spark plugs and wires
Replaced Fuel pump and fuel line (swapped it with 1.5 engine so its a little shorter and goes off rail)
Cleaned up the fuel injectors.
Repaced the IAT and MAP sensors.
Checked the timing of the car and the timing belt.
Cleaned the air vents and checked air filter.
Checked the fuses.

The only thing that’s left is the engine compression, throttle body sensors (i’ve tried disconnecting them and it still won’t start), and coil packs (i’ve checked and i already have a spark).

I went to my local mechanic for a compression gauge and he said that the car would still run even if the compression is too low and he doesn’t have one.

I removed the valve cover and the engine looks very clean (no oil sludge or anything), and the car has been regularly maintained by the previous owner every 15k km (10k mile).

I ran a computer scan and got MAP sensor voltage low and MAP circuit intermittent low only so i replaced the sensor and still the same.

The car sometimes starts and runs very rougly for 5 seconds and then dies (it dies quicker when i give it gas) and 90% of the time it won’t even start at all.

This car is literally driving me crazy i just cannot figure out why it won’t start.

Any help would be appreciated.