How to test fuel pressure

[max_s2]

Hi.
As the title says, I want to know how to test fuel pressure.

1) I've a gauge and I can connect it between fuel lines. But where exactly?
2) What BAR's I should see in idle?
3) Should I take the car for drive and make WOT to see whats happens on the gauge?

[max_s2]

And maybe someone can tell me from which coolant temp sensor ECU takes information for fuel richment - from the one that comes in cylinder head or from MFTS that comes below coolant mainfold?
In VAG-COM it shows me 95c, but on spido coolant gauge I see stable 90c.. should it be so?

[Jamo]

And maybe someone can tell me from which coolant temp sensor ECU takes information for fuel richment - from the one that comes in cylinder head or from MFTS that comes below coolant mainfold?
In VAG-COM it shows me 95c, but on spido coolant gauge I see stable 90c.. should it be so?

ECU use G62 the one in the cylinder head.

Nice link below


http://forums.audiworld.com/s4s6/msgs/148742.phtml

MFTS is for the gauge

http://www.sjmautotechnik.com/trouble_shooting/cooling.html#gauge

[Pirvu Eugen]

Hi.
As the title says, I want to know how to test fuel pressure.

1) I've a gauge and I can connect it between fuel lines. But where exactly?
2) What BAR's I should see in idle?
3) Should I take the car for drive and make WOT to see whats happens on the gauge?

I have instaled an oil pressure sender on to the fuel feed line. I grounded the adapter and i use an oil pressure gauge insight the car to monitor the pressure. At 3B at idle you should see ~2.5; 2.6 bar... depending on the vacuum from the intake.
Hope this helps!