Thanks for the reply Dom.

It's the bank with the distick in that I had the issues with originally, regarding the lack of codes I have also had the my local dealer connect their laptop in the car but they couldn't get any codes either unfortunately.

I'll Google where the MAFS is located and check that's plugged on properly.

Thanks for the heads up on yhe injector cleaner I'll order some.

 

Are you still getting 'failsafe mode' or the check engine light?

 

I'm getting "restricted performance" currently Michael.

 

Doing a bit and research a poorly working MAFs could give me the symptoms my car is having but I also understand the car should be putting out some codes too which its not. 🤔

https://www.jaguarforums.com/forum/x...access-269345/

The link above shows the location of both MAFs. I've not touched them and since I'm not a mechanic unless I replace them im them I'm not sure what checking them would achive unless I'm checking connections.

 

There's a thread here from kreysig which may help about RP with no codes:

https://www.jaguarforums.com/forum/xk8-xkr-x100-17/restricted-performance-but-no-code-113854/#post933349

If you took the air intake off then you may have disturbed the connector for the MAFS. Looks like this:

 

Thanks for the heads up Michael I'll remove the intake and look to see if has been dislodged etc.

 

Hu,
No real need to remove the intake. Just check that the 4-way plug is snug. It's at the back between the MAF housing and the cam cover

 

Magic in a bottle, like Techron complete fuel system cleaner, and the BG 44K, which are the only two products known to actually do anything, work best as a regular preventative. They work extremely poorly to fix an injection that’s already plugged up.

If you have plugged up injectors, a professional pressure cleaning is the only legitimate solution. Anything less is just as effective as a voodoo chicken sacrifice, a total waste of money

Z