Originally Posted by
john_d
it runs fine when its started so im not sure its the injectors
why would it start with easy start?
On my cat engines the cranking speed isn't fast enough for the fuel pump to make enough pressure for the ECM to open the injectors, easy start makes the engine fire increasing the engine speed to then get the pressure high enough for the ECM to open injectors, these modern engines are alot different to the old engines when they wouldn't cold start
You cannot guess these things though rail pressure needs testing under cranking, I've not had a failed heui pump yet it's always been leaking injectors causing a drop in pressure, if you have individual fuel lines they can be blanked, but if you haven't only way I've found is finding cylinders that aren't firing within 10 seconds after cold start to isolate faulty injector