My CA18ET won't fire please help????? I'm New

[Paul Smith]

Hi i hope you can help i have recently purchased a car with a ca18et engine fitted i believe from a bluebird turbo. She was running and broke down one day. I have an ok knowledge of engines but not particularly familiar with the ca18et. From what i have done so far she will turn over happily all day long but she doesn't appear to be sparking i have had the plugs out and i can see no spark. I was wondering whether it may be the ignition coil.
Or are there common faults with the engine to change first????

Please help

Paul