MK1 MX-5 turns over but won't run. Help!

Hi there, I was wondering if anyone could solve this problem. I recently purchased a Mazda MX5 MK1 that had sat for 3 years. Being my first project I started by stripping the car and not working on the main problem that it did not run. After diagnosing that there is no spark I went and replaced the igniter, ECU and CAS to still find that there is no spark. I have also purchased a diagnostic tool to help diagnose; this let's me control the switch like fans and fuel pump however tells me these no fault and won’t let me operate switches like clutch pedal or accelerator.

If anyone can help me with this it would be a massive help.

Many thanks,