Help me with my fuel system

[hardcorecar]

hallo guys...do you ever had this fuel pressure not consistent issues??this is my story...i set my fuel regulator at 3.8bar then i drove my car for like several KM and then i open up my hood and my fuel pressure is at 4.0bar or more sometimes it could be 3.3bar and less..i run on stock fuel pump and injectors...soo what could be the error here???:hmmmm::hmmmm::hmmmm:

 

[DanzEterna]

maybe u have a leaked hose somewhere.

 

[hardcorecar]

maybe u have a leaked hose somewhere.

could it be leaked from my fuel hose??but i don't see any drops...:hmmmm:

 

[slipar]

any smell of petrol after open hood..or fuel regulator spoil already..

 

[hardcorecar]

any smell of petrol after open hood..or fuel regulator spoil already..

I dun smell any...how to detect whether fpr already spoil or not??

 

[ken yeang]

Try substitute with another regulator and see if the prob persists...

 

[hardcorecar]

Try substitute with another regulator and see if the prob persists...

will try this...but let say if da problem is still there what could be any possibilities for this problem??

 

[egb18c]

last time i had the same problem, the culprit was the gauge itself.
the location of the FPR was too hot,so i relocate the FPR and a good member of this forum gave me an idea to drain all the oil inside the gauge.now my reading is consistent.

 

[ken yeang]

will try this...but let say if da problem is still there what could be any possibilities for this problem??

try it 1st, bro.

need to trouble shoot one by one, systematically

 

[l2s_turbo]

Check your vacuum hose and vacuum source too..

 

[dking91]

Check your vacuum hose and vacuum source too..

if cannot find the problem after troubleshoot... try check the fuel hose at the fuel pump....
got problem to start the engine?

 

[Speeder]

Leaking:-
Check vacuum hose
Check fuel hose

Devise problem:-
Change another gauge and test
Change another AFPR and test

Question:-
1) What type (either original or imitation) AFPR using?
2) Are you install it correctly? Possible share some photo to us?

 

[hardcorecar]

Leaking:-
Check vacuum hose
Check fuel hose

Devise problem:-
Change another gauge and test
Change another AFPR and test

Question:-
1) What type (either original or imitation) AFPR using?
2) Are you install it correctly? Possible share some photo to us?

I'm using FSE MALPASSI adjustable fuel regulator..it has double diagfram which I think heavy duty right..

---------- Post added at 11:12 AM ---------- 6 hour anti-bump limit - Previous post was at 11:11 AM ----------

if cannot find the problem after troubleshoot... try check the fuel hose at the fuel pump....
got problem to start the engine?

Got no problem to start da engine..