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barbos
12th December, 2011, 12:45 PM
Hi. Can anybody help Fiat Ulise with bad fuel pump.
Engine on high rpm can give max pressure 1050 bar.
Engine stop and say rail pressure is too low.
Man who has this car say 133 hp is very much.
He may feed only 20 horses:)
Change fuel pump very expensive.
Can anybody decrease rail pressure to 1000 bar?
Thanks.

bobolin4o
12th December, 2011, 05:43 PM
I don't think, that 350 euro are too much for this pump...

tomo776
13th December, 2011, 12:11 AM
Did you chek return valve?
I have problem with marea problem in this solenoid valve.
After replace him presure is ok.

barbos
13th December, 2011, 07:17 AM
Reduce valve and fuel pump (fuel tank) is new.
I didnt check only return stream of injectors. Its may be too.
The car some years going with "emulator pressure BOX".
At each acceleration the engine stopped.
After remove this "BOX" car run well.
But long acceleration engine may stop.
Please decrease rail pressure from 1340 to 1000 bar.
Thanks.

oem
13th December, 2011, 07:31 AM
Try with this and report.

barbos
15th December, 2011, 08:06 AM
Thanks. Car run well!
OEM it make free.
And nothing say about money.
Admins, OEM is good man.
Can you unlock him?
Please.