MK5 Golf GTI

All Things Mk5 => Mk5 General Area => Topic started by: generalen15 on January 13, 2023, 06:40:43 pm

Title: golf 5 gti fuel rail pressure
Post by: generalen15 on January 13, 2023, 06:40:43 pm

hi, is there anyone who knows if the fuel rail pressure in fsi engine drop overnight or should it hold pressure until next overnight start? my problem is that overnight pressure it drop to around 6bar pressure.

Title: Re: golf 5 gti fuel rail pressure
Post by: pudding on January 14, 2023, 11:12:58 am

The high pressure side doesn't stay high, but the low pressure side should maintain 5-6 bar over night.  High pressure is built up again during cranking.