I am wondering if I can get some help I have a 1997 Jaguar XJ6 I am having a issue with it staying running

I am getting the p1313 code, p300,302 and p1775.

I have changed our egr, cleaned throttled position sensor, switch coils and plugs out from Bosch to NGKs

the car is wired sometimes it will run for 40 mins and sometimes it will run for 2 minute

can someone please point me in the right direction thanks

 

APH1
Just to advise you, you are in the wrong section of the forum. This section is for XJ6 s from 1967 to 1987.
You need to be in the X300 forum for cars 1994 to 1997.
Cheers