Any "Delphi Epic" diesel pump experts ?

[hairyyoda]

Hello all.
Looking for technical information about the "Delphi Epic" high pressure diesel pump. This type of diesel pump has several sensors that are linked through the vehicles ECU and is the electronic throttle type of high pressure diesel fuel pump etc. The present Delphi Epic pump is "suspect" but no in depth fault finding has taken place and no ECU codes checked yet.
(1) What would be the best method to do a like for like swap with a tested and "known to be working replacement pump".
(2) Would there be any possible "coding issues" with the ECU unit
(3) Injectors are the conventional type and "not coded"
(4) I am only thinking about helping someone out but "I don't want to get into a complicated drawn out problematic job"
Any input/help will be appreciated. Thank you all Phil

[Kevgun]

That's got to be a 100 bhp " smiley face " transit about 1997 ish? The Epic pump was pretty unreliable. I might be able to find some info, but if I were you I' give it a swerve.

I can't remember what else it was fitted to LDV convoy maybe

Kevgun

[hairyyoda]

Thanks Kevgun.
52 plate Fiat Doblo 5 door, 5 seater small MPV. They are the 1.9D non turbo engines pre common rail, fly-by-wire throttle so would think that ECU codes will be a controlling factor ??? There was a time when you could beat a injection pump with a hammer and get a lucky result ? "Doesn't work like that these days everything is getting far to modern now".
Thanks Phil

[rodp]

Better off in the long run to spend the money and have the codes read, it can save a fortune. May only be a sensor causing the problem, do you know just what sensors it uses, crank, egt, o2, water temp, exhaust ? And what's the problem?

[Kevgun]

Just had a look at some info on it, and you are going to need to get it on a scanner. On some Vehicles around that age you could retrieve Blink codes to help you find the fault, but Delphi did not support that very well, but have a good look around under the bonnet it being a Fiat there's a good chance the wirings rotten it's the most common fault on all these modern electronic infested vehicles, i know i have a 15 plate Sprinter i'm sorting out at the moment because its been at the dealers 8 times with the same fault and still not fixed.

Anyway good luck

Kevgun

[hairyyoda]

Thank you Kevgun.
Have 2 codes, that are >>>
(1) PO 510 Flow Modification "which I understand is limp mode"
and
(2) PO 254 Injection Pump Fuel Metering Control A High (cam/rotor/injector)

Would changing the faulty sensor be a simple option ? or will that only be possible when coupled up to a diagnostic unit for any calibration/adjustments needs

Also trying to identify each of the 6 electronic sensors/devices that are attached to the Delphi Epic Pump
1 sensor/device facing the front of the car on the Delphi pump
2 sensors/devices on top of the Delphi pump
3 sensors/devices facing the rear engine bay bulkhead on the Delphi pump

Easier to do open heart surgery on a flea than to find answers on the internet, whether Google is your friend or not.

Thank you again Kevgun, your help is valued Phil

[Kevgun]

OK P0254 is the rotor position sensor in the pump
P0510 relates to Throttle valve actuator check for a vacuum cell leak most likely

Going home now so won't have access to info until Monday

Have Fun

Kevgun

[hairyyoda]

Thanks Rod and Kevgun.
I was under impression that there was/is ? a terminal high pressure pump problem, I have been to have a investigation today and have done a hour of loom checking from the multi connection on the pump back to the ECU, the harness and some connections could be better but it is what it is. Started the engine and left it idle for a few minutes, all seems O/K and engine runs O/K. Have left it for now and will go back to it on Sunday armed with loaned OBD diagnostic kit, I am now having a brain storming debate with myself that these Fiat 1.9 D engines are far to complicated for a long and simple life span. The up side will be revived Doblo and there is not much of a down side because I would think that the car will break for more than the value of the car. As a backup I am going to "Google" Green Flag Recoveries terms and conditions and suggest that a membership application is a good idea .