why fuel preesure drop when ramp up..

[PDD_EG9]

Hi All Sifu,
I just convert my civic to EG9, but why my fuel pressure drop when ramp up...? Fuel pump problem, injector or fuel regulator problem ? I did change injector and adj fuel regulator (custom made), no improvement, drop also, pls advise...thanks!!!!

 

[J101]

you should have swap in the EG9 fuel pump during the conversion. it can be your fuel pump underated for the EG9 engine or dying slowly. tap a fuel press gauge after the fuel filter and get the reading frm there. when load, it should be higher than idle.

 

[kuNyit]

U shud check with EFN coz he is one of the master in any fuel regulator issue..