My 1999 XKR is coming up Failsafe Engine mode and then restricted performance. The car is running fine, there certainly isn't any restricted performance. I have looked for codes on my ODBII reader but there aren't any shown. Any ideas please?
Many thanks Gerard.

 

no codes huh, I’ve always had a code when the F/S engine mode came calling.

first to do : do a hard restart, search on the forum if you don’t know the procedure.

second, check the battery voltage after the care has sitting overnight without any battery tender. It should read 12.6v or higher.

Any less and you should consider a new battery, in the meantime you might be able to rejuvenate the battery by keeping it on a battery tender whenever the car is parked.

Z