Vy Not starting

[DylanR5]

I have a 2002 Vy commodore that I got started today and it started up 4-5 times then I let it idle and it was misfiring so I started to check which
Cylinder was misfiring so I unplugged one ignition lead and tried to start it it wouldn’t start then I plugged it back in and still wouldn’t start and I also plugged in and obd2 reader if that would make it not start please help

 

[lout]

more history on this car please
when did this problem start
service history

 

[DylanR5]

more history on this car please
when did this problem start
service history

Just after service it was sitting sitting for 2 years

 

[Fu Manchu]

Gummed up injectors. Gummed up fuel pump. Old fuel doing its old fuel thing.

 

[DylanR5]

Gummed up injectors. Gummed up fuel pump. Old fuel doing its old fuel thing.

It’s running now replaced ignition coils board and leads but misfires when cold but perfect when hot

 

[Fu Manchu]

Vacuum leaks would explain that. As the metals and rubbers expand with heat, things seal up and it runs fine.

It all cools and contracts and vacuum leaks again.

You can bet a simple smoke test on the intake would show every leak causing your head aches.