Multiple engine codes, ds3 2010

[Ryrc]

Wondering if anyone is able to give me any insight what might be causing these codes?
The car has had a lot of work done at the garage since I bought it 8 months ago it’s becoming a nightmare. It’s had a new clutch and second hand gearbox fitted, new timing chain, oil change/filter change, new camshaft sensors - that’s just the work to the engine
No closer to having the codes gone.
More recently a big problem has been when I’m in motion driving and shifting through gears, if I press down the clutch for more than a few seconds the rev counter will drop to zero and the engine will stall, oddly enough it’s not a problem if the car is stationary?? It will sit there and idle, occasionally a bit rough but it won’t drop even if I select any gears and hold the clutch on the bite and drop it back do n there’s no issue, it’s only an issue when I’m actually travelling at speed?

No clue what the 15A0H/5536 code refers to?
I’ll leave a couple photos of the codes below, any advice would be greatly appreciated!
Contemplating getting rid as spares and repairs at this point after the amount of money that’s been poured into it, it seems like such a waste of a nice car tho

[gwest]

Just to clarify, this is the 1.6 non-turbo with twin VVT (Vanos in BMW-speak) and variable valve height control.
What distance has the car travelled?
Can you monitor engine oil pressure to make sure it is within specs? (the Vanos units require satisfactory oil pressure to operate).

[GiveMeABreak]

If you want help with these fault codes, you'll need to provide your VIN - but most of what you have replaced to date parts-wise has anything to do with these fault codes. You really should of started with the fault codes and worked from there before changing parts that may of been unnecessary.

(please post your VIN in full without spaces - it will be automatically masked from public view after submitting your post & will only be visible to staff).

[Ryrc]

It is indeed the 1.6 non turbo petrol engine, the car is up to about 121k miles. The only way I have to check the pressure is the scanner which when I check the readings it was saying oil pressure was 2x the setting it should be - a new sensor has been fitted to no avail
The vin code for the vehicle is: VF7**************[VIN obfuscated, can be read by forum staff]

[GiveMeABreak]

So here are the fault codes as they relate to you specific vehicle. Focus on these first of all.

Fault Code:	P0343
Description of Fault:	Inlet cylinder reference sensor signal fault: Coherence. Detection of a loss of signal from the inlet camshaft (Signal stuck in high status). Conditions of activation of the diagnostics The following conditions have to be met: - Engine management ECU in main triggering phase - engine running
Conditions for Fault to clear:	Acquisition of the signal in conformity
Downgrade Modes whilst Fault is active:	Adaptation of the oxygen sensor regulation stopped. Change to butterfly mode. Deactivation of checking of the canister purge. In the event of a double fault on the inlet camshaft and the exhaust camshaft, injection is deactivated on restarting. Prohibition of dephasing of the inlet camshaft.
Symptoms:	Lack of power. Restarting impossible if there is a double signal fault on the inlet camshaft and the exhaust camshaft.
Suspect Areas:	Inlet camshaft position sensor. Electrical harness.

Fault Code:	P15A6
Description of Fault:	Pressure regulation fault ( oil): Pressure too high in relation to the reference value. Oil pressure too high in piloted automatic mode. Conditions of activation of the diagnostics The following conditions have to be met: - Engine running -Battery voltage correct -Oil temperature correct
Conditions for Fault to clear:	Confirmation of return to automatic mode on the piloted oil pump.
Downgrade Modes whilst Fault is active:	Change to "mechanical mode" on the piloted oil pump
Symptoms:	Excessive fuel consumption
Suspect Areas:	Oil pressure sensor Oil pump regulation electrovalve Engine ECU

Note that the following code for P15A0 is what I have without the 'H' and there is nothing for '5536', so be aware.

Fault Code:	P15A0
Description of Fault:	Oil pressure regulation fault: Pressure too high. Too many successive transitions into oil pump downgrade mode while the pressure is too high. Pressure too high. Conditions of activation of the diagnostics At least one of the following conditions must be fulfilled: - Engine running - Battery voltage correct
Conditions for Fault to clear:	Confirmation of return to automatic mode on the piloted oil pump
Downgrade Modes whilst Fault is active:	Change to "mechanical mode" on the piloted oil pump
Symptoms:	Excessive fuel consumption
Suspect Areas:	Oil pressure sensor Oil pump Oil pump regulation electrovalve

Fault Code:	P11A9
Description of Fault:	Fault in the inlet camshaft dephasing: Not characterised. Diagnosis of the adaptation of the position of the exhaust camshaft dephaser. Difference between the theoretical (calibrated) position of the exhaust camshaft dephaser at idle and that measured, above 17°. Conditions of activation of the diagnostics The following conditions have to be met: - Adaptation of the inlet camshaft dephaser completed - Inlet camshaft dephaser temperature between 0 and 130 °C
Conditions for Fault to clear:	Adaptation of the exhaust camshaft dephaser completed (At the next start-up)
Downgrade Modes whilst Fault is active:	Change to butterfly mode Uncrossed position of the exhaust camshaft (idle position) Mixture adaptation from the prohibited basis Deactivation of checking of the canister purge
Symptoms:	Stalling Idle unstable Lack of power Emissions outside the norms Excessive fuel consumption
Suspect Areas:	Engine ECU Intake camshaft dephaser

Fault Code:	P11A8
Description of Fault:	Fault in the exhaust camshaft dephasing: Coherence. Diagnosis of the adaptation of the position of the exhaust camshaft dephaser. Difference between the theoretical (calibrated) position of the exhaust camshaft dephaser at idle and that measured, above 17°. Conditions of activation of the diagnostics The following conditions have to be met: -Adaptation of the exhaust camshaft dephaser completed -Temperature of the exhaust camshaft dephaser between 0°C and 130°C
Conditions for Fault to clear:	The fault disappears if the adaptation of the exhaust camshaft dephaser is completed successfully (on next starting)
Downgrade Modes whilst Fault is active:	Change to butterfly mode Uncrossed position of the exhaust camshaft (idle position) Mixture adaptation from the prohibited basis Deactivation of checking of the canister purge
Symptoms:	Unstable idling Engine hesitation Stalling at idle
Suspect Areas:	An exhaust camshaft dephaser Engine ECU Exhaust camshaft position sensor

Fault Code:	P0139
Description of Fault:	Downstrean oxygen sensor signal fault: Coherence. In injection cut-off, the engine ECU checks that the information from the downstream oxygen sensor is "richness low" (Voltage higher than 0,15 V for more than 0,20 seconds). Conditions of activation of the diagnostics: Main wake-up Battery voltage more than 11 V Downstream oxygen sensor heated up and available Engine running Injection failure (For at least 7s)
Conditions for Fault to clear:	The value measured is less than the maximum threshold. Voltage lower than 0,15 V for more than 0,20 seconds. In injection cut-off, the value measured is less than the reference (For a duration of 10s).
Downgrade Modes whilst Fault is active:	Oxygen sensor values not available. Deactivation of the regulation of lambda change into open loop, No purging of the catalytic converter.
Symptoms:	Emissions outside the norms
Suspect Areas:	Downstream oxygen sensor

Fault Code:	P0054
Description of Fault:	Downstream oxygen sensor resistor fault. Resistance internal to the downstream sensor is too great (For at least 6s). Conditions of activation of the diagnostics The following conditions have to be met: - Engine management ECU in main triggering phase - Temperature of the gases at the downstream sensor between 200 and 720°C - Inlet air temperature higher than -6,8°C - The battery voltage is between 10,7 V and 16 V - Engine running - No cutting of injection
Conditions for Fault to clear:	Resistance internal to the downstream oxygen sensor less than the maximum threshold (For at least 20s)
Downgrade Modes whilst Fault is active:	Transition to open loop of the downstream regulation Deactivation of purging of the catalytic converter
Symptoms:	Emissions outside the norms
Suspect Areas:	Downstream oxygen sensor Electrical harness

[Ryrc]

Thank you very much for the code descriptions! Definitely gives me a better idea of where I need to be looking to clear these faults

[Ryrc]

Would it be a silly idea to take a look at the oil control valve?? (Vvt solenoid) I was just reading up how it can effect the passage of oil and camshaft timing?

[Ryrc]

Is anyone able to help me find the location of the vvt solenoids?

[gwest]

Pelican Parts have a good description on their web site- just search for Vanos solenoid replacement MINI R56.