So the issue began the fateful day of purchase, engine would kinda jump/stall randomly when driving and had to be pretty perfect on take off or it does the same. Started popping mad on downshift n such and lost power then rev limiter cut to 4K limped it to my car park and now she hasn’t started since just crank and no start apart from the odd Occassion it would sound like it was bout to start for a sec then millisecond later it would be off again, so far I I have replaced crank position sensor then we tried starting her on starter fluid and she went for about 3 secs then died again so changed fuelpump, relay and filter and no luck. What to try next??? Very lost and quite salty as this was the very first drive of owning the thing and I am praying it wasn’t her last. (comp sounds alg on crank so don’t think it’s that but never know) p/s have put my ear to pump and heard it whirling on crank so think that’s fine, any tips for next steps lol.