got another wee look at it today, and found some strange readings on the live data (ive had to go in through generic obd as it doesn't show a lot when you actually go into the make/model)

with KOEO
map sensor reading is a negative number (volts) around -0.5
maf 0
fuel rail pressure (psi) 115.9
ambient air temp is 120C
control module voltage is 52v

when cranking;
fuel pressure 4500-5200 psi
MAP(inHg) 1806
MAF 0

still getting codes;
P0251 Injection pump fuel metering control'A' range/performance (cam/rotor/injector)
and P1211.

ive never been one for electrical issues, this just about has me beat