Fuel pressure regulator
Moderator: martauto
-
tha881
- E30 Zone Regular
- Posts: 780
- Joined: Thu Apr 15, 2010 11:00 pm
- Location: Kent
Is there a way of checking the fuel pressure regulator is working correctly? I had an issue where the vent pipe to the intake manifold had cracked and come off. I drove it like this for about a day before I realised. Since then I've had an issue with a dip in revs when returning to idle and it has cut out quite a few times. The spark plugs have been changed recently and it appears to be running lean. Any suggestions would be greatly appreciated thank you
-
sindako
- E30 Zone Newbie
- Posts: 57
- Joined: Sun Jul 13, 2014 11:00 pm
- Location: Jordan, Middle East
I Test mine using a Bottle .
Disconnect the return Hose ,
Put a Bottle under the return pot on the FPR .
let someone just tap the switch and turn the car off fast .
It should Fill around a coffee cup on that small amount of engine run .
(Tested 3.0 BAR FPR) I guess the 2.5 is not that different as it's a close ratio .
Disconnect the return Hose ,
Put a Bottle under the return pot on the FPR .
let someone just tap the switch and turn the car off fast .
It should Fill around a coffee cup on that small amount of engine run .
(Tested 3.0 BAR FPR) I guess the 2.5 is not that different as it's a close ratio .