Engine Light - Fault Code P005A

AdrianH

AdrianH

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Hi All,

Vauxhall (Opel) Mokka Ultimate (May 2023)
1.2 8 speed auto

This morning, the car jerked slightly as if the engine lost combustion/power for a split-second while accelerating out of a corner. Immediately the car beeped, showed "Engine Fault" and the engine light stayed yellow. The car may or may not have reduced drive power, but I don't really know as I didn't put the car under any strain after the fault appeared.

As I was almost at the train station, I decided to rather just park and go to work and see if the fault sort's itself out when I returned later. Alas, 8 hours later, upon starting the car the car beeped, showed "Engine Fault" and the engine light stayed yellow the instant I switched it on. Drove home without any issues or perceived power loss, again not pushing car though. When arriving home, plugged in my OBD-II device and the code shown was P005A - B Camshaft Profile Control Performance/Stuck Off Bank 1.

**
The P005A fault code refers to the B Camshaft Profile Control Performance or Stuck Off on Bank 1 of the engine. This code is typically found in vehicles equipped with variable valve timing systems. It indicates that there is an issue with the control or operation of the intake camshaft on bank 1.

The camshaft profile control system is responsible for adjusting the timing and lift of the intake valves, optimizing the engine's performance, and fuel efficiency. When this fault code appears, it means that there is a problem with the operation of the camshaft profile control system on bank 1.

What does trouble code P005A mean?
There are several potential causes for this fault code, including:
  1. Faulty camshaft position sensor: A malfunctioning sensor can provide incorrect information to the engine control unit (ECU), leading to improper intake camshaft control.
  2. Wiring or connection issues: Damaged or loose wiring, connectors, or terminals related to the camshaft position sensor can cause this fault code.
  3. Mechanical issues with the camshaft or timing components: Any mechanical problem that affects the operation of the intake camshaft, such as a worn or stuck camshaft phaser or timing chain, can trigger this fault code.
  4. ECU software or calibration issues: Occasionally, the fault may be due to a software glitch or programming error in the ECU, requiring an update or reflash.

How to fix P005A?
To fix the P005A fault code on cars, you can follow these steps:
  1. Start by inspecting the wiring and connectors related to the camshaft position sensor (CMP) and the variable valve timing (VVT) control solenoid for any signs of damage, corrosion, or loose connections. Repair or replace as necessary.
  2. Check the engine oil level and quality. Low or dirty oil can affect the performance of the camshaft profile control system. Change the oil if needed.
  3. Verify that the VVT control solenoid is functioning correctly. Use a scan tool or multimeter to test the solenoid's electrical signals and resistance. Replace the solenoid if it is faulty.
  4. Check the camshaft position sensor for proper operation. Test its electrical signals and resistance using a scan tool or multimeter. Replace the sensor if it is faulty.
  5. Perform a visual inspection of the camshaft, camshaft phaser, and timing chain for any signs of wear, damage, or blockages. Repair or replace components as necessary.
  6. Clear the fault code using an OBD-II scanner or by disconnecting the vehicle's battery for a few minutes. Drive the vehicle and monitor the system to see if the fault code returns.
  7. If the fault code persists, consider seeking assistance from a qualified mechanic or dealership. They may perform further diagnostic tests using specialized equipment to pinpoint the exact cause of the fault and recommend the appropriate repairs.
Remember to consult the vehicle's service manual or contact a professional for specific instructions and proper diagnosis of this fault code.

**

My questions I have are
  1. Anybody know the seriousness of the fault? (IE: stop driving immediately)
  2. Do you think I should clear the error and see if it crops up again?
  3. Don't clear the fault and go straight to Vauxhall (Opel) who will charge me off the bat just to plug in the ODB-II device to check the fault code. (This is the UK, you pay for air to fill your tyres at the petrol stations here)
As a side note, I checked the oil as in "Fix" point 2, all good there.

Thanks Everyone
 
Don’t know the car but the ecu will typically take the crank sensor value and use that(1 crank rotation = 2 cam rotations)
Mechanically no harm will be done but you may find it takes a couple more cranks to start.
If you clear the error and the sensor is broken it will just come back again.
 
Depending on the location of the sensor, perhaps pull it and clean it. I had a similar issue with my Corsa recently (Intake Manifold issues relating to the sensor). Car lost power, engine light etc. Pulled it, cleaned it (Just blew it out, it was basically spotless) and cleared the codes. It hasn't returned and the car drives perfectly.
 
AdrianH said:
Hi All,

Vauxhall (Opel) Mokka Ultimate (May 2023)
1.2 8 speed auto

This morning, the car jerked slightly as if the engine lost combustion/power for a split-second while accelerating out of a corner. Immediately the car beeped, showed "Engine Fault" and the engine light stayed yellow. The car may or may not have reduced drive power, but I don't really know as I didn't put the car under any strain after the fault appeared.

As I was almost at the train station, I decided to rather just park and go to work and see if the fault sort's itself out when I returned later. Alas, 8 hours later, upon starting the car the car beeped, showed "Engine Fault" and the engine light stayed yellow the instant I switched it on. Drove home without any issues or perceived power loss, again not pushing car though. When arriving home, plugged in my OBD-II device and the code shown was P005A - B Camshaft Profile Control Performance/Stuck Off Bank 1.

**
The P005A fault code refers to the B Camshaft Profile Control Performance or Stuck Off on Bank 1 of the engine. This code is typically found in vehicles equipped with variable valve timing systems. It indicates that there is an issue with the control or operation of the intake camshaft on bank 1.

The camshaft profile control system is responsible for adjusting the timing and lift of the intake valves, optimizing the engine's performance, and fuel efficiency. When this fault code appears, it means that there is a problem with the operation of the camshaft profile control system on bank 1.

What does trouble code P005A mean?
There are several potential causes for this fault code, including:
  1. Faulty camshaft position sensor: A malfunctioning sensor can provide incorrect information to the engine control unit (ECU), leading to improper intake camshaft control.
  2. Wiring or connection issues: Damaged or loose wiring, connectors, or terminals related to the camshaft position sensor can cause this fault code.
  3. Mechanical issues with the camshaft or timing components: Any mechanical problem that affects the operation of the intake camshaft, such as a worn or stuck camshaft phaser or timing chain, can trigger this fault code.
  4. ECU software or calibration issues: Occasionally, the fault may be due to a software glitch or programming error in the ECU, requiring an update or reflash.

How to fix P005A?
To fix the P005A fault code on cars, you can follow these steps:
  1. Start by inspecting the wiring and connectors related to the camshaft position sensor (CMP) and the variable valve timing (VVT) control solenoid for any signs of damage, corrosion, or loose connections. Repair or replace as necessary.
  2. Check the engine oil level and quality. Low or dirty oil can affect the performance of the camshaft profile control system. Change the oil if needed.
  3. Verify that the VVT control solenoid is functioning correctly. Use a scan tool or multimeter to test the solenoid's electrical signals and resistance. Replace the solenoid if it is faulty.
  4. Check the camshaft position sensor for proper operation. Test its electrical signals and resistance using a scan tool or multimeter. Replace the sensor if it is faulty.
  5. Perform a visual inspection of the camshaft, camshaft phaser, and timing chain for any signs of wear, damage, or blockages. Repair or replace components as necessary.
  6. Clear the fault code using an OBD-II scanner or by disconnecting the vehicle's battery for a few minutes. Drive the vehicle and monitor the system to see if the fault code returns.
  7. If the fault code persists, consider seeking assistance from a qualified mechanic or dealership. They may perform further diagnostic tests using specialized equipment to pinpoint the exact cause of the fault and recommend the appropriate repairs.
Remember to consult the vehicle's service manual or contact a professional for specific instructions and proper diagnosis of this fault code.

**

My questions I have are
  1. Anybody know the seriousness of the fault? (IE: stop driving immediately)
  2. Do you think I should clear the error and see if it crops up again?
  3. Don't clear the fault and go straight to Vauxhall (Opel) who will charge me off the bat just to plug in the ODB-II device to check the fault code. (This is the UK, you pay for air to fill your tyres at the petrol stations here)
As a side note, I checked the oil as in "Fix" point 2, all good there.

Thanks Everyone
Click to expand...
Its a 2023 model? Just take it to a dealer and they must fix it while you drink coffee.
Why get involved trying to fix something on a car less than a year old?
 
neoprema said:
Its a 2023 model? Just take it to a dealer and they must fix it while you drink coffee.
Why get involved trying to fix something on a car less than a year old?
Click to expand...

UK dude, you have to book it in for at least 1/2 day and will very likely be charged a minimum £75 for that privilege of them sticking in a OBD device.
 
UrBaN963 said:
Depending on the location of the sensor, perhaps pull it and clean it. I had a similar issue with my Corsa recently (Intake Manifold issues relating to the sensor). Car lost power, engine light etc. Pulled it, cleaned it (Just blew it out, it was basically spotless) and cleared the codes. It hasn't returned and the car drives perfectly.
Click to expand...

Seems like the sensor is pretty easy to access, clean and replace if necessary, Maybe try that first.
 
It reads like you need an Italian tune.
Rev the **** out of it and see if error clears.
 
Jet-Fighter7700 said:
maybe the UK has much the same dealerships we have here, you pay to breathe the air in the dealership floor.
Click to expand...
No bru. If the car is under warranty I'm not paying a cent. Indeed, I didn't pay a cent. That's their promise of a solid motoring experience and they will honour it. Don't budge an inch man.
 
Had a camshaft position sensor error in my brother's Polo 1.9 TDI a few years ago after he did an emergency stop. Reset the code and it never triggered again. The car also ran fine while the check engine light was on.

Take it to the dealership and ask them to check things out. The car is under warranty, so you shouldn't have to pay a penny.
 
UrBaN963 said:
Surely it has warranty? They can't charge you for a warranty issue.
Click to expand...
Yeah, 3 years. I still reckon they will charge me for the diagnostic. Will need to call.

**********************************
Vauxhall’s new vehicle warranty ensures your peace of mind against material or manufacturing defects for three years (unlimited mileage for the first 12 months and subject to a total mileage limit of 60,000 miles from first registration). This applies to all cars and vans except Vivaro and New Movano, the additional warranty for which carries a limit of 100,000 miles from first registration.

It guarantees repairing or replacement of parts and substituting parts for your new vehicle at no charge by a Vauxhall trained technician.

To have a repair carried out on your vehicle, please take your service booklet containing your New Vehicle Warranty and Vauxhall International Service Certificate to a Vauxhall Retailer.

The warranty does not cover normal wear and tear or tyres and does not apply to: damage due to accidents, misuse or alteration, damage or corrosion caused by the environment, chemical treatments or aftermarket products, lubricants, fluids, third-party repairs, equipment on vehicles not built or supplied by Vauxhall or an affiliated company or to non-Vauxhall accessories. We recommend that the vehicle is maintained in line with Vauxhall published Service Schedules.
**********************************
 
They cannot charge you for a diagnostic on an engine fault for a vehicle that is under warranty. They could charge you if there's an external reason for failure (corrosion, accident damage etc.) but assuming that isn't the case, no.

If they try to, nails them with CPA (Or whatever the equivalent is there).
 
Just an update

Opened the engine bay and checked to see if I could find something out of place. I did notice one sensor that may not have been connected 100% as the plastic cap was loose, so wiggled it secured it better.

Then I cleared the fault with OBD-II dongle and the engine light went off. Restarted the car but the screen still would say "Engine fault". So went for a 5 minute drive, nothing eventful happened, parked the car and waiting an hour. Now no errors are lights are showing which is good news. Will keep an eye on it though.

That said, can anybody help me determine where the sensor is located on the engine, I am struggling to find a schematic or diagram. This is the engine (yes, Vauxhall/Opel use Peugeot engines LOL)

Engine Peugeot EB2DTS
​

1709899366254.png

mymotorlist.com

Engine specifications for Peugeot EB2DTS, characteristics, oil, performance

The 1.2-liter Peugeot EB2DTS or HNY turbo engine has been produced by the company since 2014 and is installed on all compact and medium-sized models of the concern under the PureTech 130 indices. There are a number of modifications to this power unit: EB2DTSD, EB2DTSM and EB2ADTS. Engines of the...
mymotorlist.com
 
UrBaN963 said:
No bru. If the car is under warranty I'm not paying a cent. Indeed, I didn't pay a cent. That's their promise of a solid motoring experience and they will honour it. Don't budge an inch man.
Click to expand...
Agree, but they don't call them stealerships for nothing.

That free coffee costs something after all.
 
UrBaN963 said:
Try this

Click to expand...

Thanks

Seen a couple vids of people doing it, its a simple fix if you have a faulty sensor that needs replacing. My issue is that there several sensors connceted to the engine, I don't know which is which.
 
AdrianH said:
Thanks

Seen a couple vids of people doing it, its a simple fix if you have a faulty sensor that needs replacing. My issue is that there several sensors connceted to the engine, I don't know which is which.
Click to expand...
Doesn't the video show the location? I didn't watch it.
 
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