Any ideas

[Urchins]

My camper T25 2.1 watercooled injection has been cutting out periodically at speed. The cut outs were getting more regular though she still re started within 5 mins. Now, after changing worn out starter, I cant get her to fire up, everything seems to be there, oil pressure is fine, fuel lines clear and fuel filter clear. On thinking this was electrical I have had ECU tested and that came back with no problems, other than maybe hall sender anyone any ideas....

[BOXY]

I don't know if this will be any help, but I've got a intermittent fault that stops the engine starting. Here's how I tested the Hall sensor.
https://club8090.co.uk/forum/viewtopic.php?f=39&t=74454" onclick="window.open(this.href);return false;

[Aidan]

DJ ?
possibly ignition amplifier they do that intermittant thing as they break down, when hot, ok when cold,eventually fail
check the basics first
air spark fuel

[Hacksawbob]

possibly ignition amplifier they do that intermittant thing as they break down

yes as well I know, started and ran lovely for about 10 miles then cut out would start after about a 10 minute rest. got worse and worse, I dont think it ever actually didn't start though.