Stuart72

15 hours ago, AlexWard said:

From what i have discovered during my RP issue over the last 3 weeks, start looking at the following...

 

Remove undertray, check that the valve operating the airflow from the intercooler, via its hoses is operating correctly. There is a name for this widget, but it escapes me at the moment.

Remove and check the MAP sensor on the throttle body housing, its a small rectangular sensor at the rear of the unit, held in by one torx screw. NB... DO NOT use electrical cleaner to clean out the contacts, nor carb cleaner as it destroyed mine.

Look for any signs of oil contamination over the injectors on the OS cylinder head cover (remove main engine cover and carefully peel back the injector sound proofing to view)

Check for oil leaks around the bottom hose going to the intercooler NSF, check for the same on the OSF inter cooler.

Check for any oil leaks around the base of the throttle body housing, near to the oil filter and coolant housing, this would indicate a split at the rear.

Hopefully, this will put you on the path to enlightenment, i started off with a similar MAF sensor issue, which turned out to be a cracked cam cover, thankfully replaced before i even started replacing sensors like a mad man....

I am sure there will be more additions from members who have suffered similar issues...

Fantastic, Thank you so much Alex.

Won't get a chance to get to it this week, just hoping it'll hold off until I get back.

Will keep you informed.

Thanks again

Hi Steve,

Thank you so much. I will keep that in mind.

It was mentioned to me that the problem might stem from P00BD Mass Or Volume Air Flow A Circuit Range/Performance.

I might wait until I hear from a couple more Jag enthusiasts who may be in the know.

Thanks again, will keep posted

Hi all,

2011 3.0d XF S Premium.

Last week I had the dreaded Restricted performance in red come up. Thought it might have been the DPF, but didn't say so in orange. I have just had my car hooked up to an OBD reader & here are the results.

P00BD Mass Or Volume Air Flow A Circuit Range/Performance

P1247 Turbocharger Boost Pressure Low

P0235 Turbocharger/Supercharger Boost Sensor A Circuit

P22D2 Turbocharger Turbine Inlet Valve Stuck Open

P22CF Turbocharger Turbine Inlet Valve Control Circuit - Open

Help please, any advice would be gratefully appreciated.