What's new
Peugeot RCZ Forum

Register a free account today to become a member. It's free! Once signed in, you'll be able to participate on this site by adding your own topics and posts, connect with other members through your own private inbox and take part in competitions!

P15A6 and P0948 codes

Valex

Active Member
Joined
Jan 29, 2021
Messages
165
Reaction score
118
Points
43
Location
The Netherlands but Italian :)
Update ...
I drove back home, and all the gauge values on the app were the same as this morning.
In acceleration, the oil pressure gauge goes over the 100 PSI :rolleyes: (101-102). That is the reason I changed the max value of the gauge to 200 PSI.
Again, the check engine light went off after 2-3 seconds after I turned on the engine and the "Engine Fault: repair needed" never came out.
But arrived at home the fan was on and it stayed on until I disconnected the battery :(.
This is the export file from the Car scanner app :eek: In red the description I found on internet
Car Scanner ELM OBD2
DTC report
Selected brand: Peugeot

============1==============
P15A6
Raw code: 15A6
ECU: Engine control unit#3
Status: Test is inhibited by other DTC, Validated and stored in non volatile memory
P15A6 Engine Oil Pressure Too High Before Start
============2==============
P0948
Raw code: 0948
ECU: Engine control unit#3
Status: Test is inhibited by other DTC, Validated, and stored in non volatile memory
OBDII: Hydraulic pump relay - circuit high
P0948 Hydraulic Pump Relay Circuit High
============3==============
P15A8
Raw code: 15A8
ECU: Engine control unit#3
Status: Pending fault present, Test conditions are met, Validated and stored in non volatile memory
P15A8 Lubrication system : Pressure not consistent with the atmospheric pressure
============4==============
P0522
Raw code: 0522
ECU: Engine control unit#3
Status: Pending fault present during this driving cycle, Test conditions are met, Validated and stored in non volatile memory
OBDII: Engine oil pressure sensor/switch - low voltage
P0522 Engine Oil Pressure Sensor/Switch Low Voltage
============5==============
P15A7
Raw code: 15A7
ECU: Engine control unit#3
Status: Pending fault present, Pending fault present during this driving cycle, Test conditions are met, Validated and stored in non volatile memory
P15A7 Engine Oil Pressure Too Low Before Start
============6==============
P15A6
Raw code: 15A6
ECU: Engine control unit#4
Status: Test is inhibited by other DTC, Validated and stored in non volatile memory
P15A6 Engine Oil Pressure Too High Before Start
============7==============
P0948
Raw code: 0948
ECU: Engine control unit#4
Status: Test is inhibited by other DTC, Validated and stored in non volatile memory
OBDII: Hydraulic pump relay - circuit high
P0948 Hydraulic Pump Relay Circuit High
============8==============
P15A8
Raw code: 15A8
ECU: Engine control unit#4
Status: Pending fault present, Test conditions are met, Validated and stored in non volatile memory
P15A8 Pressure not consistent with the atmospheric pressure
============9==============
P0522
Raw code: 0522
ECU: Engine control unit#4
Status: Pending fault present during this driving cycle, Test conditions are met, Validated and stored in non volatile memory
OBDII: Engine oil pressure sensor/switch - low voltage
P0522 Oil pressure sensor signal : Short circuit to earth
============10==============
P15A7
Raw code: 15A7
ECU: Engine control unit#4
Status: Pending fault present, Pending fault present during this driving cycle, Test conditions are met, Validated and stored in non volatile memory
P15A7 Oil pressure too high in relation to the atmospheric pressure
 
Last edited:

Pedro

Well-Known Member
Joined
Jan 16, 2020
Messages
2,561
Reaction score
801
Points
113
Location
Cheshire
Can be that the high oil pressure is caused by the 5W-40 oil. As I wrote above, was a test for the smoke after idling in the traffic.
Next change, ready for the winter, I'm going back to the 5W-30 Total Ineo ECS :).
I will post the Car scanner App screens just to see if the values are different.
These engines don't like the wrong viscosity oils as your pointing out & thicker oil will cause cake & sludge issues in the oilways I always use 5w-30 Total Ineo low saps 3 with a Bosch filter in my 200 & never had any issues + it runs smooth as a Rolls-Royce in my estimation! 😄
 
Last edited:

Valex

Active Member
Joined
Jan 29, 2021
Messages
165
Reaction score
118
Points
43
Location
The Netherlands but Italian :)
My RCZ is my daily drive and I do 80 kilometers a day (home-work-home) 5 times a week. It is now at 139.000 Km.
I'm a little bit confused about what to do for the next step. Just change the oil+filter (I use the Purflux that is identical to the original Peugeot) or replace the solenoid valve on the oil pump :rolleyes:.
 

Valex

Active Member
Joined
Jan 29, 2021
Messages
165
Reaction score
118
Points
43
Location
The Netherlands but Italian :)
Update ...
Just back from a 10km ride, no strange lights on the dashboard and no cooling fan on o_O. I didn't reset the errors today so everything is exactly the same as when I came home from my work. Only difference is that now it is raining and this afternoon not :rolleyes:.
 

Valex

Active Member
Joined
Jan 29, 2021
Messages
165
Reaction score
118
Points
43
Location
The Netherlands but Italian :)
Update ...
I went to the supermarket, Oil pump valve duty graphic was dead to zero.
I started the car to come back home and it started to move o_O , this is the video where in the parking place I try some accelerations in neutral:

Arrived at home, turned off the engine, restarted again and the graphic was flat to zero again o_O
 

Valex

Active Member
Joined
Jan 29, 2021
Messages
165
Reaction score
118
Points
43
Location
The Netherlands but Italian :)
Update ...

Saturday I replaced oil and oil filter.
Used the car a little around the town and this morning to drive at work.
Gauges on the App are exactly the same as before and oil pressure, at 80-100 km/h (~ 2000 RPM) is still around 100 PSI. At idle, with motor warm, pressure is ~40-50 PSI.
I reset all the errors and now I have only P15A7
P15A7: Engine Oil Pressure Too Low Before Start :rolleyes:

The Oil pump valve duty graph on the app is strange, one time , after the motor start, it stays flat at zero and another time it is pulsing from 0 to 99% 🤨
Screenshot_20220917-104058.jpg
 
Last edited:

Pedro

Well-Known Member
Joined
Jan 16, 2020
Messages
2,561
Reaction score
801
Points
113
Location
Cheshire
You don't have much luck do you? o_O The P15A7could be down to an electrical connection or wiring loom issue this code can also appear if the sensor is not the same as the makers specification?
Maybe the App is dodgy?
 

Attachments

  • P15A7.PNG
    P15A7.PNG
    155.8 KB · Views: 2

Valex

Active Member
Joined
Jan 29, 2021
Messages
165
Reaction score
118
Points
43
Location
The Netherlands but Italian :)
Last week, when I replaced the oil pressure switch under the turbo, I spayed the connector with some electronic contact cleaner. Also It didn't look damaged.

Also, about the App Oil pump valve duty graph, no idea if the signal comes from the solenoid valve on the oil pump or from the pressure switch below the turbo.

It is strange that it is working so randomly. When I turn on the motor and it decides to work, it is working/pulsing for all the ride, till I turn the engine off.
If it is not working at the engine starting it stays to zero for all the ride. Just turn off and turn on again and maybe it starts working o_O. As you say, could be that is just the app.

Tomorrow I should go to a small Peugeot specialist (this is what is write in the website :rolleyes:) garage and see what he has to tell me.
I was also thinking to install an external oil pressure gauge, just to see if the oil pressure is matching with the app or not.
 

Valex

Active Member
Joined
Jan 29, 2021
Messages
165
Reaction score
118
Points
43
Location
The Netherlands but Italian :)
Update ...
Yesterday I went at work and back home, 80 km (90% highway) and no strange lights or messages.
Oil pressure on the app is still high.
I bought this adaptor from Aliexpress so I can connect the original pressure switch and an external pressure gauge. Cost less than half hour in a garage 😁! Screenshot 2022-09-21 084256.png
 

Valex

Active Member
Joined
Jan 29, 2021
Messages
165
Reaction score
118
Points
43
Location
The Netherlands but Italian :)
I'm keeping myself busy 😁.
Yesterday I found this video in Portuguese but I can understand what he is speaking about :).

And this is my testing with the original oil pressure sensor. Now I know that it is not just a pressure switch (on/off) but it is a pressure sensor that can send different tensions (Volt) for different pressure values.
This is my replication of the test 😅:
Here just checking the tension of the USB power supplier. Should be 5V but it gives 5.30V.
20220922_105745.jpg

At 0 Bar, the tester should read 0.5V, in my case 0.8 Volt.
And here with 4 BAR, the tester should read 2 Volts but in my case it is reading 2.44 Volts.
IMG-20220922-WA0000.jpeg


Now I need a power supply that give exactly 5.0 Volts.
 

Valex

Active Member
Joined
Jan 29, 2021
Messages
165
Reaction score
118
Points
43
Location
The Netherlands but Italian :)
I just removed from the engine and I tested the aftermarket pressure sensor I bought last week.
At 0 BAR it gives 0.7 Volt (VS 0.8 of the original one)
At 4 BAR it gives 2.24 Volts (VS 2.44V of the original one)

For now I will use the aftermarket one so the ECU read less pressure 😅.
I'm curious to see what the mechanical pressure gauge will indicate 🤔, I'm am already thinking to keep it on the motor with a nice race braided hose and AN fittings 😁.
 

Pedro

Well-Known Member
Joined
Jan 16, 2020
Messages
2,561
Reaction score
801
Points
113
Location
Cheshire
I will only fit to replace any engine components like a cam or crank sensor the original spec I have tried aftermarket cheap ones & they all end up in the bin 😆
 

phillipn

New Member
Joined
Apr 14, 2023
Messages
11
Reaction score
1
Points
3
Location
Australia
Last week, when I replaced the oil pressure switch under the turbo, I spayed the connector with some electronic contact cleaner. Also It didn't look damaged.

Also, about the App Oil pump valve duty graph, no idea if the signal comes from the solenoid valve on the oil pump or from the pressure switch below the turbo.

It is strange that it is working so randomly. When I turn on the motor and it decides to work, it is working/pulsing for all the ride, till I turn the engine off.
If it is not working at the engine starting it stays to zero for all the ride. Just turn off and turn on again and maybe it starts working o_O. As you say, could be that is just the app.

Tomorrow I should go to a small Peugeot specialist (this is what is write in the website :rolleyes:) garage and see what he has to tell me.
I was also thinking to install an external oil pressure gauge, just to see if the oil pressure is matching with the app or not.

Hi,
did you fixed the high oil pressure? or do you have to change the oil pressure solenoid valve inside the oil pan? I have the same problem and most people say i have to change the oil pump solenoid valve inside the oil pan.
 

Valex

Active Member
Joined
Jan 29, 2021
Messages
165
Reaction score
118
Points
43
Location
The Netherlands but Italian :)
Hi,
did you fixed the high oil pressure? or do you have to change the oil pressure solenoid valve inside the oil pan? I have the same problem and most people say i have to change the oil pump solenoid valve inside the oil pan.
No, I'm still waiting for warmer days because I want do the job by myself. In the meantime, I'm always accelerating slowly keeping the oil pressure under the 7 Bar and waiting that the oil warms up. I can still drive 100Km/h (max speed limit in the Netherlands).
 

phillipn

New Member
Joined
Apr 14, 2023
Messages
11
Reaction score
1
Points
3
Location
Australia
No, I'm still waiting for warmer days because I want do the job by myself. In the meantime, I'm always accelerating slowly keeping the oil pressure under the 7 Bar and waiting that the oil warms up. I can still drive 100Km/h (max speed limit in the Netherlands).
thanks for quick response. So no issue driving with the high pressure? how many KM did you drive since high pressure occur? I just bought a second hand 308 2010 CC which has the same high pressure symptoms. I noticed the engine feel alot hotter when drive. but i the coolant temperature always stay in the middle but when i use the FAP app i can see the coolant temperature around 100-105C, i read and seems like normal temperature range for these car. Last week after i change the thermostat next day it started to leak coolant where the water pump is so I changed the water pump myself, its pretty easy job. After that i noticed the engine run cooler and dont feel as hot but the oil pressure still high between 50-100PSI like yours. I was going to change the oild pressure sensor but from reading your post i dont think its the sensor.
I order a new oil solenoid valve and have a mobile mechanic come and replace it tomorrow. Will let you know the update once i change it. I am just worry about driving around with high oil pressure as I read and someone lost the engine due to the valve not working properly.
My symptom is exactly the same as yours. sometime the valve just continously move between 0-99% when you start the engine and sometime it does not move at all when you start the engine. either way i can see the oil pressure is high. At cold startup the FAP app read around 6200mbar at idle and after it warm up it read around 3500mbar at idle but if i drive and the rev to 2000rpm, the oil pressure is around 6800mb - 7200mb.
I did try to remove the oild dipstick while engine is on at idle to see if the pressure drop but it doesnt.
 
Last edited:

phillipn

New Member
Joined
Apr 14, 2023
Messages
11
Reaction score
1
Points
3
Location
Australia
No, I'm still waiting for warmer days because I want do the job by myself. In the meantime, I'm always accelerating slowly keeping the oil pressure under the 7 Bar and waiting that the oil warms up. I can still drive 100Km/h (max speed limit in the Netherlands).

also from the FAP app these error codes show up.
P0945 P0948 P15A0 P15A6
 
Last edited:

Valex

Active Member
Joined
Jan 29, 2021
Messages
165
Reaction score
118
Points
43
Location
The Netherlands but Italian :)
Yes, exactly the same symptoms and pressure values. I think I did already more than 5000 km (example to don't follow) but as I wrote I'm always waiting that the water temperature heats up and the oil pressure decrease a little. Constantly driving with the App open. At 60 km/h I'm already in 6th gear :rolleyes:.
No issues with the water temperature, actually driving it stays lower that 80ºC. But change the liquid is also something that I need to do this summer.
I did not know about this FAP App you mentioned, I will give a try :). I'm really happy with the Car Scanner App I'm using.
I'm really curious to know how your mobile mechanic will do the job. As you saw on my previous posts/pictures, it is a pain in the ass to do this solenoid valve replacement job o_O.
Hope this will solve your issue. Please let me know.
 
Last edited:

phillipn

New Member
Joined
Apr 14, 2023
Messages
11
Reaction score
1
Points
3
Location
Australia
hi,
ok i changed the oil solenoid valve. On my car i dont even need to take out the drive shaft because it come with the V860997380
connector which has connector to the inside plug and the whole vavle including the connector seat inside the oil pan. Its strange i thought the connector suppose to be on the outside.
Anyway the pressure is back to normal now and the valve is working as expected.
I now get around 2900mb - 3500mb (whchs is around 30 - 50PSI) and valve working anywhere between 50% - 72%.
All it need was to take off the oil pan and replace the solenoid valve and the job was done.
 

Valex

Active Member
Joined
Jan 29, 2021
Messages
165
Reaction score
118
Points
43
Location
The Netherlands but Italian :)
I'm happy that you solved the issue and that you didn't have to remove half car :).
Not really clear to me what you did with this repair kit :rolleyes:. Please check my wonderful draw/collage:p and see if I understood correctly:
Solenoid valve.png
 
Last edited:

phillipn

New Member
Joined
Apr 14, 2023
Messages
11
Reaction score
1
Points
3
Location
Australia
I'm happy that you solved the issue and that you didn't have to remove half car :).
Not really clear to me what you did with this repair kit :rolleyes:. Please check my wonderful draw/collage:p and see if I understood correctly:
View attachment 13720

hi,
thats exactly right. The connector on the left is the one on the outside. Where your blue line is, is where it stopped and the rest is inside together with the valve on the right and the one on the right you put all inside the pan. You dont need the metal bracket provided.
When you open you oil pan you can check to see whether yours has this cable on the left or not but mine has. I am not sure whether its OEM came with the car maybe Peugeot change it with their newer model? or previous owner replace with this.

I am trying to search on the net to see any cars has this installed.
 
Top