R34 Gt-t And New Bosch 044 Pump

[avoiee]

So upgraded to Bosch 044 after that car needs three times trying to start running ! it seams like its not pumping fuel to injectors but after car starts everything is working great !

what can be the reason ?

And i cant even hear pump working, my mates are having same pumps they they are very loud, mine is quiter then standard ! nothing is wrong with pump olready got 320 at weals and its fine !

Thx

[Dale FZ1]

So upgraded to Bosch 044 after that car needs three times trying to start running ! it seams like its not pumping fuel to injectors but after car starts everything is working great !

Depending on how you plumbed the pump into the system, you may have eliminated the non return valve. Best approach for full flow, but you need to crank the engine once or twice (sometimes?) to prime the fuel system. Once the engine is shut down the pressure bleeds off again, requiring the priming crank.

Highly recommend that you check the voltage your pump is seeing too. An 044 likes/requires higher voltage than stock wiring provides in an R33, and I can't see things being any different with an R34.