ste

1994 xj40s i have owned the car for 3 years and i have a stalling problem.The car starts first time but soon as it gets to normal temperature it goes into a stalll if i keep the engine going by revving the engine manager light comes on and drives perfect . I have changed the temperature switch and lamba sensor exhaust and egr valve and also get fail 44. i have had the garage look at it but still can not find the fault any help would be very much appreciated Thanks ste

hi to every one i own 1994 xj40 3.2 sport and 2009 xf 3.0s