V12 5.3 1991 Facelift Fault Code FF13

[sbobev (Steve)]

Yes, all codes have been discussed multiple times. Here is one example;

1992 5.3 Marelli - Stall after warming up and odor

The PDF I attached in my earlier post is generated from ALLDATA (the terminology there is different - PCM vs ECU), the codes are the same though. The one you posted is a copy from the Jaguar manual but very hard to read (low res) [13%20PM]

FF13 = MAP sensor fault (likely the vacuum line is disconnected or cracked)