Вечер, мороз. Завожу машину после стоянки, загорается лампа давления масла, чек не горит. Глушу двигатель, проверяю уровень, в норме. Завожу второй раз, лампа не горит. Читаю БУ, вижу P0520. Так повторилось на сл. день, логика такая, первый раз завел — горит давление масла, второй раз завел — нет. Температура на улице и степень прогрева двигателя не имеют значения. Т.к. на носу была замена масла, залил «мягкую» промывку и поездил 150 км. Заменил масло, фильтр масла и датчик давления масла (Hella 6ZL003259601, 515 руб.). Помогло. Ранее менял масл. поддон, снизу двигатель чистый. Манометр не подключал.
PS Ошибку сбрасывал, не помогало.
P0520 is a common OBD2 trouble code. It’s generic, which means that it has the same meaning for the Fiat Punto as it would any other vehicle. P0520 indicates that the oil pressure sensor is operating outside of its normal “range”. It is typically caused by a bad oil pressure sensor switch or a wiring problem.
Your Punto’s oil pressure sensor measures the oil pressure mechanically, and converts that reading into a voltage signal that the ECM (Computer) converts into an oil pressure reading. This signal is what you see on your oil pressure gauge and triggers the oil warning light.
If the red oil warning light is on, there could be a serious problem. Do not assume that the oil pressure sensor is bad. P0520 can occur when there is no oil pressure at all.
P0520 Quick Facts
- The most common cause is the oil pressure sensor.
- It can be caused by low oil pressure.
- If you hear knocking or have the low oil pressure light, don’t drive until P0520 is diagnosed.
- Related to P0521.
P0520 Symptoms: Fiat Punto
There are often no symptoms at all (other than the check engine light). If you notice that the engine sounds different (clacky, metallic, etc) you may not have enough oil pressure.
P0520 Causes: Fiat Punto
- Oil Pressure Sensor- The oil pressure sensor itself is likely to be the cause of P0520, but looking at the oil level and quality, as well as the wiring first would be wise.
- Oil Pressure Sensor Wiring- P0520 indicates that the signal from the oil pressure sensor has a circuit malfunction. This could indicate a wiring issue.
- Low or No Oil- The first thing that you should do is check to see if there is oil in your vehicle’s engine at all. If the crankcase is empty or really low on oil it can throw P0520. If this is the case, fill the oil back up, clear the code, and that may fix the problem.
- Low Oil Pressure- If the oil pressure level is too low, this code will show up. It should show up with the oil light, or a low reading from the oil pressure gauge.
- Dirty or Wrong Oil- If your Punto’s oil hasn’t been changed for a long enough period of time, it can interfere with the oil pressure sensor, even if there still is oil pressure.
Punto P0520 Diagnosis
Here are the steps a mechanic would take to manually diagnose P0520 in your Fiat Punto.
1. Check the Oil
The first thing that you should do is check the oil level. If it’s full make sure that it looks healthy. If it appears to be black or grimy, it may be interfering with the oil pressure sensor. If the vehicle is past it’s oil change deadline (regardless of how the oil looks), changing the oil would be a good idea.
2. Inspect the Wiring Harness
Next, you should inspect the wiring harness running from the oil pressure sensor to the ECM. If it has any damaged wiring, that could be causing P0520. Don’t forget to make sure that the harness is still plugged into the sending unit and undamaged.
Wiring issues are one of the more common reasons that this code is thrown. The wiring is close to the Punto’s exhaust and can get brittle over time.
3. Manually Check The Oil Pressure
Assuming that the oil level and wiring both look fine, the next thing to do would be to manually check the oil pressure. You can use a manual oil pressure gauge to see if it’s where it needs to be. They are easy to use. Here’s a great YouTube video that will show you exactly how to use this gauge to check.
If the oil pressure from the gauge reads ok, you’ll need to replace the oil pressure sending unit/sensor. If there is low or no oil pressure, you’ll need to figure out why.
Conclusion: P0520 Fiat Punto
Diagnosing P0520 is straightforward. Make sure that you verify that you have oil pressure if the oil light is on. Good luck fixing your Punto!
|
/—-/ ЗДЕСЬ МОЖЕТ БЫТЬ ВАША РЕКЛАМА! /——/
|
| Важные объявления | |
|
|
ФИНАНСОВАЯ ПОМОЩЬ КЛУБУ! Подробности тут… |
| Последние темы и видео | ||
| Последние темы | Объявления автобазара | Последнее видео |
| 21.09.23 LED lamp в фары ближнего све… 21.09.23 Какую лучше выбрать автосигн… 21.09.23 Как улучшить бокс для хранен… 20.09.23 Как часто нужно менять масло… 20.09.23 Не заводится ФИАТ ДОБЛО 1.3 20.09.23 не работают задний ход/паркт… 01.08.23 Техническая литература и док… 20.07.23 Замена масла после обкатки 20.07.23 Кто какое масло заливает в с… 04.07.23 Сигнализация на Linea Все последние темы >>> |
21.04.23 куплю подрамник на Фиат гранд … 30.11.21 Куплю элстеклоподьемник темпра 15.11.21 Продам диски 12.11.21 Doblo 1.3 Cargo пассажир 19.10.21 Автомагазин «Авторитет&qu… 02.10.21 куплю шторку багажника 29.09.21 Фиат Регата 1,7Д по запчастям 22.07.21 Куплю литые диски на Fiat Tempra 19.06.21 Куплю передние пружины 18.03.21 Запчасти 1.9 JTD Ко всем разделам «автобазара» >>> |
Fiat Doblo Замена сальника кол…Последние комментарии >>> |
|
Ошибка P0520 — Лампочка давления масла |
||||||
|
||||||
|
||||||
|
||||||
|
||||||
|
||||||
|
||||||
|
||||||
|
|
|
Расшифровка ошибки P0520 у FIAT: ПЕРЕКЛЮЧАТЕЛЬ КЛАПАНА ВТОРИЧНОЙ СИСТЕМЫ ВПРЫСКА ВОЗДУХА № 2 БАНК 1 ЗАКРЫТ
Марка:
FIAT
Код:
P0520
Определение:
ПЕРЕКЛЮЧАТЕЛЬ КЛАПАНА ВТОРИЧНОЙ СИСТЕМЫ ВПРЫСКА ВОЗДУХА № 2 БАНК 1 ЗАКРЫТ
Описание:
Клапан переключения подачи воздуха № 2 (банк 1) застрял в закрытом положении: давление не изменяется (уменьшается) после того, как контроллер ЭСУД посылает сигнал клапана переключения открытого воздуха № 2 (банк 1). (Логика обнаружения за 2 поездки)
Причина:
- VSV для контура управления впрыском воздуха (банк 1)
- Вакуумный шланг (VSV для управления впрыском воздуха — клапан переключения воздуха № 2)
- Воздух инжекторная трубка (клапан переключения воздуха №2 — выпускной коллектор)
- клапан переключения воздуха №2 (банк 1)
- VSV для управления впрыском воздуха (
- VSV for air injection control circuit (Bank 1)
- Vacuum hose (VSV for air injection control — air switching valve No.2)
- Air injector pipe (Air switching valve No.2 — exhaust manifold)
- Air switching valve No.2 (Bank 1)
- VSV for air injection control (
Опрос: Где ремонтируется Ваш автомобиль? (Кол-во голосов: 2672)
У себя в гараже
У официалов
В гараже у Васи
Чтобы проголосовать, кликните на нужный вариант ответа.Результаты
From english:
Decoding the error P0520 from FIAT: SECONDARY AIR INJECTION SYSTEM SWITCHING VALVE NO.2 BANK 1 STUCK CLOSE
Make:
FIAT
Code:
P0520
Definition:
SECONDARY AIR INJECTION SYSTEM SWITCHING VALVE NO.2 BANK 1 STUCK CLOSE
Description:
Air switching valve No.2 (Bank 1) stuck close:No pressure change (decrease) after the ECM sends an open air switching valve No.2 (Bank 1) signal.(2 trip detection logic)
Cause:
Еще ошибки категории
Ошибки автомобилей разных произвродителей
Опрос: Смогли ли диагностировать неисправность? (Кол-во голосов: 444)
Да, лично
Да, с помощью знакомого
Да, у официального дилера
Нет
Чтобы проголосовать, кликните на нужный вариант ответа.Результаты
Расскажите друзьям:
Поставьте рейтинг, для нас это очень важно:
Голосов: 0 чел. Рейтинг: 0 из 5.
-
#1
I have a 1.3 diesel multijet Qubo (55kw)
I have the error code P0520, and check engine message
I have changed the 3 sensors relating to oil pressure sensors/switches, changed oil pump, changed timing chain, done full oil change, oil filter, in fact everything I can think of on the oil side and sensor/switches side to do with oil pressure switches/sensors
The code has been cleared several times but still comes up.
Can anyone please help with me getting this fixed, its only done 70k
Many thanks in advance
-
#2
How old is it. ?
DPF equipped?
-
#3
If all that has been done and checked I’d be looking at the wiring to the sensor
-
#4
How old is it. ?
DPF equipped?
Yes has DPF
2011 61 plate
-
#5
Yes has DPF
2011 61 plate
So when it had an oil and filter change. What did the degradation counter say?
And did it reset ok.? I suspect this may be related to your issue.
Last edited:
-
#6
So when it had an oil and filter change. What did the degradation counter say?
And did it reset ok.? I suspect this may be related to your issue.
Oil degradation was reset fine
So an update but issue still exist
Oil pump, filter, sensors, switches, timing chain, oil,
Oil pressure test done and as it should be, its been «graphed» cold and hot and both show as they should so myself, 2 garages are now baffled as to what can be done, it’s been to a specialist diagnostic place (not fiat) as the fiat one said they had this before with a previous qubo and were unable to fix, but the diagnostic garage its just been to is unable to map the code out
Feel like hitting my head on a wall now can anyone suggest anything that has not been done so this can be fixed, the car runs as it should just very annoying to have the engine light on and display say insufficient oil pressure to start with and then goes to say stop start unavailable
-
#7
Only thing I can think of is (remembering a Mini from decades ago…) take out the pressure switch and check it’s not gunked up.
In those days it gave a bad reading of blocked filter (I presume?) no computer to throw a wobbler at you, you just took things apart and cleaned them!
Worth a shot if you can find it.
R-V-M
Oil degradation was reset fine
So an update but issue still exist
Oil pump, filter, sensors, switches, timing chain, oil,
Oil pressure test done and as it should be, its been «graphed» cold and hot and both show as they should so myself, 2 garages are now baffled as to what can be done, it’s been to a specialist diagnostic place (not fiat) as the fiat one said they had this before with a previous qubo and were unable to fix, but the diagnostic garage its just been to is unable to map the code outFeel like hitting my head on a wall now can anyone suggest anything that has not been done so this can be fixed, the car runs as it should just very annoying to have the engine light on and display say insufficient oil pressure to start with and then goes to say stop start unavailable
-
#8
Oil degradation was reset fine
Hi
Did you ever get a solution? I have exactly the same challenge so any update/solution would be very welcome
Thanks
-
#9
Oil degradation was reset fine
Hi
Did you ever get a solution? I have exactly the same challenge so any update/solution would be very welcome
Thanks
Hi
More info please..
Codes..?
Service info.. degradation..
Miles on vehicle etc
Poperon
-
#10
Hiya
History:
Had a suspected ‘timing chain jump’ — lost power, limped home, ground to halt. No start. Horrendous rattle from the timing chain so … a jumped tooth/messed timing?
Stripped it all down (what a palaver!!)
Turned out to be disintegrated guide rattling about & stretched chain — did the chain, guides etc. and in the process checked the oil pump (as you do) primed on the bench, seemed fine… Rockers OK. Reassembled.
Oil change, new filter. No leaks.
Still no start… eventually, worked through every sensor till I got to the fuel rail sensor. Changed, started, runs sweet as… till warm, then drops to limp mode ‘check engine’
MUltiscan ‘DPF clogged — level 2’. Passive regen… 100% So ‘all good’ (Runs through all revs like new). Stop. done.
But no! Start again runs with no warnings till around 50deg. (warm) then ‘insufficient oil pressure’ on the dash. What!!?
Run with Multiscan — anything around (or over) 1K rpm = Oil pressure ‘normal’ below that Oil pressure ‘off’ and ‘insufficient oil pressure’ on the dash
So, pulled pressure sensor — not stuck. Working.
Connected oil pressure gauge. At idle — swings between 0 and 3bar!
Hmm, baffled.
Possibly ‘oil pressure regulator valve’? (this has the wretched stop-start)
80K
New injectors in the same month (1 over-fueling so changed the lot)
Last edited:
-
#11
A very long shot, but have any of you with this issue tried changing your oil cap? I did an oil change on mine today and unintentionally started it with the oil cap off. Straight away the cooling fan came on even though it was cold, but it went off as soon as I refitted the cap so the ecu must have somehow detected the cap was missing.
The cap has an O ring on it, come to think of it so does the dipstick. Is it possible that if the seal is perished or missing is it possible it could have an effect on the oil pressure???
-
#12
Oil pressure : no
But may detect it through the myriad of DPF related info..
Fan running is a regen thing
-
#13
Back on the ‘boulder up a hill’ again this am. latest:
Start — straight to 3 bar. No variance with revs. Hot or cold.
and/or
Start — stays at 0 bar till rev, then straight to 3 bar.
Urgh…
Thinks — sticking pressure relief valve? Hooray, turns out to be the only thing easily accessible on this wretched vehicle.
But boo, not obviously stuck, though plunger doesn’t ‘drop out’ due to gravity which I (and my wonderful ‘on the end of a phone’ mechanic Dan at JD Auto Kings Lynn — did the injectors and an absolute gent on this) think it should.
Also, Qubo should idle at around .5bar and up to 4bar under revs, so consensus is now knackered oil pump — possibly distorted timing cover on re-fitting binding the relief valve ‘just enough. (Now, try finding’ a ‘unique to 2011 models with stop-start’ timing chain cover/oil pump… Why Fiat, just why!!? :bang: Pump on way from Czech republic…)
Last edited:
-
#14
I hope you are making progress RoyAB. Apologies for not checking in so often… I see your last update was three weeks ago.
When we owned a Peugeot HDI diesel, we has a really annoying fault that took some time to understand. Sometimes is worked fine, sometimes it went into limp home mode. Someone else had a similar issue nearby and we ended up comparing the cars side by side.
The fault turned out to be a vacuum leak on the sensor side.
A worn diaphragm had pin holes that lost vacuum and depending on where you were in your driving cycle it might make the difference between enough vacuum to operate a lever or none at all.
I don’t know enough about the engine yet, but perhaps the you have a root cause that shows different fault modes depending on external conditions.
Anyone got a diagram of the sensors/actuators involved and how they sense/actuate?
I hope that helps — I know from experience that these issues can drive you mad.
Keep posting updates…Good luck
C.T.
-
#15
I have a 1.3 diesel multijet Qubo (55kw)
I have the error code P0520, and check engine message
I have changed the 3 sensors relating to oil pressure sensors/switches, changed oil pump, changed timing chain, done full oil change, oil filter, in fact everything I can think of on the oil side and sensor/switches side to do with oil pressure switches/sensors
The code has been cleared several times but still comes up.
Can anyone please help with me getting this fixed, its only done 70k
Many thanks in advance
I know this is a fairly old post now but have you been able to shed any light on this problem??
I too have a 2011 Qubo 1.3MJ and have the same code as you and mine has just done 57K and fully serviced every year.
A mobile mechanic told me it’s defo the oil pump BUT I took it to a trusted local garage for a second opinion and he is sure it’s not the pump.
I have it booked in with FIAT on Monday 17th August to see what they say.
-
#16
I know this is a fairly old post now but have you been able to shed any light on this problem??
I too have a 2011 Qubo 1.3MJ and have the same code as you and mine has just done 57K and fully serviced every year.
A mobile mechanic told me it’s defo the oil pump BUT I took it to a trusted local garage for a second opinion and he is sure it’s not the pump.I have it booked in with FIAT on Monday 17th August to see what they say.
What is the oil pressure reading ?
RoyAB had it checked.. pressure good
But fault was only showing periodically
Is yours like this?
Couldbe a bad electrical connection..
See the above link
-
#17
What is the oil pressure reading ?
RoyAB had it checked.. pressure good
But fault was only showing periodicallyIs yours like this?
Couldbe a bad electrical connection..
See the above link
Hope Fiat will check pressure but no oil light on dashboard which I am guessing indicates normal pressure.
My engine management light and yellow warning triangle are on all the time along with a message saying check engine and stop start unavailable. But I would have though if it was losing pressure it would say stop engine.
-
#18
Well guys Fiat have said it is the oil pump solenoid and pressure switch.
Total cost to replace both with oil and filter change will be £353.64 which I thought was pretty good for a main dealer!!
I have booked it in for Tuesday 8th September so I will report the results then.
-
#19
Well guys Fiat have said it is the oil pump solenoid and pressure switch.
Total cost to replace both with oil and filter change will be £353.64 which I thought was pretty good for a main dealer!!
I have booked it in for Tuesday 8th September so I will report the results then.
Sounds promising..
Is this a ‘guaranteed fix?’
No improvement..no charge
-
#20
Sounds promising..
Is this a ‘guaranteed fix?’
No improvement..no charge
That’s a very good question and the answer is I am not sure but if they don’t fix it I’ll not be handing over any money without a fight.
I do suspect they are correct though as my stop start has been playing up prior to the EML coming on.
At times the engine would stop and then restart itself almost right away and other times it would start again after only about 20 seconds.