can anyone help me with air mass p006a fault on discovery 4 please

only 2 days ago I had my car serviced (by a friend, not by land rover) with all the filters changed and within about 30 miles I had the restricted performance light come on and he has diagnosed fault code P006A.

it seems to come on after about 3 miles after driving and it has been diagnosed as fault code P006A
on of the mass air flow metres has now been replaced and the map sensor was not very dirty but cleaned anyway, local land rover dealers cannot book be in for at least 4 weeks and I am a bit stuck, was about to buy a map sensor but didn't want to just thro things at it especially as it looked in reasonable condition.

Also I cant help thinking that it is a bit coincidental that it was fine before service.

any suggestions would be appreciated

elliottpre said:

only 2 days ago I had my car serviced (by a friend, not by land rover) with all the filters changed and within about 30 miles I had the restricted performance light come on and he has diagnosed fault code P006A.

it seems to come on after about 3 miles after driving and it has been diagnosed as fault code P006A
on of the mass air flow metres has now been replaced and the map sensor was not very dirty but cleaned anyway, local land rover dealers cannot book be in for at least 4 weeks and I am a bit stuck, was about to buy a map sensor but didn't want to just thro things at it especially as it looked in reasonable condition.

Also I cant help thinking that it is a bit coincidental that it was fine before service.

any suggestions would be appreciated

Click to expand...

Well done for trying, but you really don't need to post it in all the different sections.

Your question will probably be answered in due course, but it may take a while, the vast majority of the members have much older vehicles than that, so I suspect you will have to wait until one of the few with late models logs in.

I was a bit confused over who could see what, I am not really impatient.
thank you.

elliottpre said:

only 2 days ago I had my car serviced (by a friend, not by land rover) with all the filters changed and within about 30 miles I had the restricted performance light come on and he has diagnosed fault code P006A.

it seems to come on after about 3 miles after driving and it has been diagnosed as fault code P006A
on of the mass air flow metres has now been replaced and the map sensor was not very dirty but cleaned anyway, local land rover dealers cannot book be in for at least 4 weeks and I am a bit stuck, was about to buy a map sensor but didn't want to just thro things at it especially as it looked in reasonable condition.

Also I cant help thinking that it is a bit coincidental that it was fine before service.

any suggestions would be appreciated

Click to expand...

I have no experience of such vehicles, even my car is three years older than that.
But just a thought, from general knowledge.

Servicing a vehicle like that does not only involve changing filters and fluids, it also involves plugging into a computer, and clearing fault codes, and entering service data.

Unless your friend has done that, I would imagine that is the cause of your problem.

elliottpre said:

I was a bit confused over who could see what, I am not really impatient.
thank you.

Click to expand...

We can all see all the posts on LZ Live.

he did clear the faults but much appreciate your reply.

elliottpre said:

he did clear the faults but much appreciate your reply.

Click to expand...

Did he enter the service data? If he didn't, the computers don't know the vehicle has been serviced.

I doubt he did enter the data but the vehicle was fine before service but shortly after came up with the air mass error code?

Hi

Put the other link here for u

https://www.landyzone.co.uk/land-ro...-on-a-p006a-fault-please.339107/#post-4423033

Plus 1 what @Turboman has said ref servicing etc

May i ask where abouts in Kent are u please

Abit of Info

6.2 Functional Overview, Description, Monitoring & Substitute Function
The function acquires the boost pressure via Angolgue-to-Digitial-Converter (ADC) input. The raw value is linearised and monitored for compliance with the signal range. The linearised and the non-linearised boost pressure are outputted.
If an SRC is detected, it is reported to the DSM and the respective error debouncing is started. If the SRC error is no longer detected, the respective healing is started.
The plausibility check is only carried out if no SRC / Signal error has occurred for either of the sensor signals. The plausibility check and SRC is inhibited if an error has occurred in the sensor supply used.
A plausibility error is detected, if below an engine speed threshold the absolute value of the difference of boost pressure and atmospheric error is too high for a calibrateable time. In this case, a defect of the boost pressure sensor is assumed and a default value is used for the boost pressure.
If the absolute value of the difference and the engine speed are below the limits above for a calibrateable time the boost pressure sensor is regarded as healed.
6.3 DTC Table Component
Fault Monitoring Strategy Code
Fault Detection Criteria
MIL Activation criteria
Secondary Parameters
Preconditioning
Demonstration test
Turbocharger Boost Pressure Sensor
P006A MAP - Mass or Volume Air Flow Correlation
Comparison of modelled AFS versus actual to detect a lack of air intake integrity
3rd Cycle
Active when EGR flow is disabled
Two Type 1 Cycles
One Type 1 Cycles
Land Rover
Revision Date: February 2010
Page 12 of 71
P0237 Diagnostic fault check for SRC low in air pressure
Signal Range Check low on MAP sensor
3rd Cycle
Active at Key On
Two Type 1 Cycles
One Type 1 Cycles
upstream of intake valve sensor
P0238 Diagnostic fault check for SRC high in air pressure upstream of intake valve
Signal Range Check High on MAP sensor
3rd Cycle
Active at Key On
Two Type 1 Cycles
One Type 1 Cycles