What pressure does the LP pump run at
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What pressure does the LP pump run at
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Posts: 6,258
Threads: 371 Joined: Feb 2014 Reputation: 29 Location: suffolk Car Model/Spec: ford fiesta 
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18-03-2017, 06:58 PM
So does anyone know this? Or anyone know when the ecu will cut in limp mode. Trying to work a few things out and cant find any data on it
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18-03-2017, 08:26 PM
the low fuel pressure is triggerd by the hp pump but the lift pump runs at 37psi i think
18-03-2017, 09:38 PM
The lift pump is regulated to 1.25bar within the fuel filter housing.
The ECU has no clue over the low pressure circuit, however if the low pressure circuit starts starving/dropping pressure, the HP pump will be starved also, which means it'll fail to make pressure. As stock there is a maximum ±250bar deviation allowed before a fault code is set.
Posts: 6,258
Threads: 371 Joined: Feb 2014 Reputation: 29 Location: suffolk Car Model/Spec: ford fiesta
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18-03-2017, 09:48 PM
Well ill have to see what pumps i can find that will make my life easier. Thanks for the info guys
On a break from 306oc for personal reasons. If anyone needs or wants me most of you have my number and or facebook messenger
Thanks for the good times guys n gals. I might be back. Who knows. 
20-03-2017, 12:55 AM
what do you need to do? higher pressure lift? more flow? might be able to point you in a direction mate.
Given the choice between Niall and the sheep. I would choose the sheep!
/Toseland
Posts: 6,258
Threads: 371 Joined: Feb 2014 Reputation: 29 Location: suffolk Car Model/Spec: ford fiesta
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20-03-2017, 06:19 AM
Just need to know what the standard ine runs ao i can measure it against another one i have
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On a break from 306oc for personal reasons. If anyone needs or wants me most of you have my number and or facebook messenger
Thanks for the good times guys n gals. I might be back. Who knows. 
20-03-2017, 04:15 PM
Iirc the pump itself runs at 3 bar, if you're testing it seperate from the fuel system. Otherwise as Ru says.
20-03-2017, 05:01 PM
the pump will typically run at whatever pressure the regulator is set at, so if you need more pressure then change the regulator.
need a part number? http://public.servicebox.peugeot.com/ and http://service.citroen.com/ will sort you out.
Posts: 6,258
Threads: 371 Joined: Feb 2014 Reputation: 29 Location: suffolk Car Model/Spec: ford fiesta
Thanks: 4
Given 82 thank(s) in 82 post(s)
20-03-2017, 05:49 PM
Thanks for all the info guys. Ill test what i have and go from there
On a break from 306oc for personal reasons. If anyone needs or wants me most of you have my number and or facebook messenger
Thanks for the good times guys n gals. I might be back. Who knows.
21-03-2017, 06:31 AM
Posts: 6,258
Threads: 371 Joined: Feb 2014 Reputation: 29 Location: suffolk Car Model/Spec: ford fiesta
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21-03-2017, 06:53 AM
I dont require more pressure. I just neesed to know stats for testing purposes. As usual the forum has deliverd some stuff for me to look into
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On a break from 306oc for personal reasons. If anyone needs or wants me most of you have my number and or facebook messenger
Thanks for the good times guys n gals. I might be back. Who knows. |
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