Fuel Pump Hum
02-04-2003, 06:53 AM
#16
Drifting
Join Date: Nov 2001
Location: Leeds, where I have run into this many lamp
Posts: 2,689
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MDH
I think 40-42 is still lower than spec:
SPECS:
at idle
3.3 bar + - .2 bar = 44.95 to 50.75 psi
jumped relay
3.8 bar +- .2 bar = 52.2 to 58.01 psi
Maybe your FPR needs a look at too!
Did you check these yourself or did the gararge do it??
EDIT - ANOTHER QUESTION
These pressure specs - are they measured before or after the Fuel Pressure Regulator?? If the specs are downstream of the FPR, which they must be if taken at the fuel rail, is there a test point for BEFORE the regulator??
I think 40-42 is still lower than spec:
SPECS:
at idle
3.3 bar + - .2 bar = 44.95 to 50.75 psi
jumped relay
3.8 bar +- .2 bar = 52.2 to 58.01 psi
Maybe your FPR needs a look at too!
Did you check these yourself or did the gararge do it??
EDIT - ANOTHER QUESTION
These pressure specs - are they measured before or after the Fuel Pressure Regulator?? If the specs are downstream of the FPR, which they must be if taken at the fuel rail, is there a test point for BEFORE the regulator??
