1991 xj6 stalls when hot

SOURCE: 95 xj6 stall

Hi if the coolant sensor is not working that would give you cutting out its up by the theremostate at the front of the engine.with two wires runing to it. 

SOURCE: 2001 Jag S-Type stalls at idle

whats the fuel pressur like last time the fuel filter was changed and is there flow at the ehasut

SOURCE: Jaguar 1995 XJ6 idle doesn't hold

I had this problem with my wifes car. I went through the car top to toe and found more than one problem causing this intermittant issue.
I found a weak crank sensor, when warm it was intermittantly losing a signal, replaced it and the problem was a little better, I then found that the throttle position sensor was also intermittantly not within the range it should be, replaced it and it helped, I then was getting the oxygen sensor code and that was only due to the car stalling, nothing to do with the o2's, I finally traced the final issue to the integral harness on the valve body inside the transmission, I replaced that harness and fitted a new transmission speed sensor and the car has been perfect.
I know you have several issues here that could be your problem but you now have a base to start from.
Last thing is the car may just need an engine set-up if you are no longer having any codes. This is only done by the dealer using there WDS computer system. The perform a oxygen sensor orientation test, they set-up the kick down and also set-up the Throttle positon sensor (TPS).
Hope this helps.
JPTCAT

Mike Butler

• 6674 Answers
• Posted on Aug 21, 2009

SOURCE: 1995 jaguar xj6 stalls once you stop at the stop signs

Look for an IAC sensor (motor) Idle Air Control.
Usually located on side & front of throttle body. Not 100% sure which type you'll have but if you have pintle type (pointed end) Remove it, spray it well with throttle body cleaner as well as port it came from, and retry. If it cures it temporarily & starts to do it again, replace it.

SOURCE: fail safe engine mode

i had this problem last week and i changed my oxygen sensor under the engine not the one on the side see what number sensor does the diagnostic give no1 is side of engine and no.2 is under engine