Non starter
 

Right, this is either a wind up or what.
my car has been kept roadworthy for over a year, started on the button every time with no issues, even after weeks or months of not being started.
i put e10 fuel in her to get her moved and didn’t remove it. Now it just turns over and will not run. It wants to then stops and just turns over again. FPR ignition says 55psi then dies off to nothing when you stop cranking? Shouldn’t this stay at pressure or has the E10 done damage and to what ?

Whack some super unleaded in.

done that and still no different. Would E10 cause that sort of damage in a couple of weeks ?

Obvious things first; battery, immobiliser & earth.

i would have not put e10 in , but no reason it should cause any damage , as above put some sul in , maybe your old fuel has gone off , is the immobiliser playing up ? flat battery at some point , fuel pressure sounds fine have you got a fuel leak as i would expect it to hold pressure , you will only know for sure fuel pressure wise when it’s running , do you have an after market fuel pressure regulator has that failed , any spark when cranking , cam or crank sensor etc

I ran my first import on unleaded E5 for a number of months before finding out it should have been run on Super unleaded. Remember seeing a lad filling up his Pulsar on Asda fuel lol. So no wouldn't think so.

Off topic slightly but did ya ever get to the bottom of your starting issue Jaygsi:wonder:ain't seen no update on the thread ya started.

In theory our cars are e10 compatible, not to be confused with what the car is mapped to. If you car is mapped to 99 and they decide to add e10 to it in theory the cars should be fine with no deterioration to injectors or lines etc outside the norm.