PD130 No start, Has fuel

Hello all

My lovely mk1 fabia I've reshelled a vrs into continues to drive me nuts.

Was running driving etc, tidying up a few things over the weekend, went to start it and it started then died. Cranked and cranked and it will not fire unless I spray something flammable down it, and it will run for a second.

I knew the Cam sensor was throwing codes so I changed it. Some abs memory codes (battery does be on and off) and a map sensor code (which I've replaced) inspected timing belt fearing the worst but it seems fine, popped off the valve cover and it is all surprisingly fresh.

Since I had the cover off, and not knowing what else might cause it I put a new injector loom in, still didn't make any odds 

No codes showing for the engine, cranks strong so I'm at a loss.

Any fuses I should check, relays etc?

Cleaned all grounds to be sure and no difference there either.

Pulled fuel lines past the filter, lift pump is squirting strong so it is getting fuel.

Hoping there is a very obvious smoking gun I'm missing.

Any help would be greatly appreciated thank you