having a weird issue with rail pressure,
2016 C7 Z06
full tilt Lt4 blower package
Ported blower
Camshaft w/38% lobe
Aux kit & flex
done a bunch of these with this set up never seen this issue before.
Rail pressure commanded is 5 Mpa
Rail pressure reading 24 Mpa
getting a p228D high fuel pressure code, then goes into Reduced engine power..
checked preload on HPFP, all good added a .050" lash cap
2 new lt4 pumps
new rail pressure sensor
wiring is all good
Does it with completely stock file and with base map..
Short idle log attached:
High_idle_rail_pressure.hpl