Matt Quinn
Member
So... following on from previous misadventure as detailed here - https://www.fiatforum.com/threads/gelled-diesel-lp-pump-now-sounds-like-a-coffee-grinder.504962/
My lift/low pressure pump has now been changed. Problems persist though. It was - 5°C at one point last night... about +2°C by the time the pump arrived and was fitted. The engine was obviously VERY cold and complained about its glow plugs. However... to cut a long story short it was eventually started (we'll deal with the glow plugs another day).
For the record - I was able to see the remaining fuel in the tank; it looked clean, clear and was definitely liquid.
The engine now runs... for a while before cutting out and throwing the check engine warning. My code reader indicates P0089 fuel reg 1 performance. - This is repeatable clearing the fault code, re-starting. - That solitary code re-occurs. I think bad fuel and/or a knackered/blocked filter could throw up that code - particularly where there is sensing on the filter itself. - But I'd be interested to hear other opinions; particularly from folk with prior experience of the 1.3 diesel engine.
It hasn't (as yet) been physically possible to re-fuel the car... so the fuel is 'not good' stuff. Bleeding the filter has been done; I noticed that loosening the bleed nipple with the engine running kills it - from experience I know this happens with some engines and not others. - Though to me this does suggest a possible lack of wonderfulness on the part of the filter. - i.e. it's basically blocked and opening the bleed is enough to kill what little pressure there is to the rest of the fuel system.
New filter is on order... should be here Saturday. It needs doing anyway.
So... my questions today...
(1) What I'd expect to be some sort of water sensor (given its position at the bottom of the filter) seems to be being referred to in some quarters as a fuel pressure sensor.
...This tutorial/video for example; https://club.autodoc.co.uk/pdf-manu...filter-on-fiat-qubo-225-replacement-guide.pdf shows a Champion CFF100502 being fitted to a Bravo 1.6. - Autodoc say this is the same procedure as applicable to the Qubo 1.3. There's a 'problem' with that video... the filter they're fitting doesn't come with the sensor already attached! - Not even from Autodoc! And yes; they do list exactly the same one for the Qubo 1.3.
So... am I right in assuming the existing sensor simply unscrews and is fitted to the new filter?
(2) What is that sensor on the bottom of the fuel filter actually sensing? Does anyone have a part number for it?
(3) I'm aware that there will be a regulator/sensor of some sort on the engine itself; where is it? and is there anything (like a strainer or something) that might need cleaning on it?
Just a quick reminder... the thing on the fuel filter I'm talking about is this: - And if you watch the Autodoc video the black thing on the bottom they refer to as a fuel pressure sensor.
My lift/low pressure pump has now been changed. Problems persist though. It was - 5°C at one point last night... about +2°C by the time the pump arrived and was fitted. The engine was obviously VERY cold and complained about its glow plugs. However... to cut a long story short it was eventually started (we'll deal with the glow plugs another day).
For the record - I was able to see the remaining fuel in the tank; it looked clean, clear and was definitely liquid.
The engine now runs... for a while before cutting out and throwing the check engine warning. My code reader indicates P0089 fuel reg 1 performance. - This is repeatable clearing the fault code, re-starting. - That solitary code re-occurs. I think bad fuel and/or a knackered/blocked filter could throw up that code - particularly where there is sensing on the filter itself. - But I'd be interested to hear other opinions; particularly from folk with prior experience of the 1.3 diesel engine.
It hasn't (as yet) been physically possible to re-fuel the car... so the fuel is 'not good' stuff. Bleeding the filter has been done; I noticed that loosening the bleed nipple with the engine running kills it - from experience I know this happens with some engines and not others. - Though to me this does suggest a possible lack of wonderfulness on the part of the filter. - i.e. it's basically blocked and opening the bleed is enough to kill what little pressure there is to the rest of the fuel system.
New filter is on order... should be here Saturday. It needs doing anyway.
So... my questions today...
(1) What I'd expect to be some sort of water sensor (given its position at the bottom of the filter) seems to be being referred to in some quarters as a fuel pressure sensor.
...This tutorial/video for example; https://club.autodoc.co.uk/pdf-manu...filter-on-fiat-qubo-225-replacement-guide.pdf shows a Champion CFF100502 being fitted to a Bravo 1.6. - Autodoc say this is the same procedure as applicable to the Qubo 1.3. There's a 'problem' with that video... the filter they're fitting doesn't come with the sensor already attached! - Not even from Autodoc! And yes; they do list exactly the same one for the Qubo 1.3.
So... am I right in assuming the existing sensor simply unscrews and is fitted to the new filter?
(2) What is that sensor on the bottom of the fuel filter actually sensing? Does anyone have a part number for it?
(3) I'm aware that there will be a regulator/sensor of some sort on the engine itself; where is it? and is there anything (like a strainer or something) that might need cleaning on it?
Just a quick reminder... the thing on the fuel filter I'm talking about is this: - And if you watch the Autodoc video the black thing on the bottom they refer to as a fuel pressure sensor.