Ok Ive done the search and read and tryed many different things but still getting the code poping up, 02 xtype 3.0 auto, after reseting the code, I can drive forever and not get the CEL and cruise not avalible, but after I shut it off and then restart and drive about 5 miles they come back on, but only after the car has been shut off, any ideas ??
changed
fuel filter
maf sensor
airfilter
checked for vac leaks ( found none )

 

Most codes are 2-trip. Probably get the same with 2 short trips as what you're doing.

Codes PDF / JTIS show which are 2 trip and also list all the known causes of each code.

Look at fuel trims at idle & 2500-ish rpm to see whether it's an unfound air leak or not.

 

Just to make sure you checked all your vacuum leaks:

Link:
jaghelp.com: Jaguar X-type common vacuum leaks. P0171 and P0174

Also there is a vacuum hose that is right below the manifold behind the throttle body that causes the P0171 and not the P0174. I usually take out the throttle body to fix this hose, just a bit of RTV sylicon.

 

thanks everyone, I went over it very carefully 1 more time and found the vac leak, no more P0174 code, BUT i started getting P0430 aaahhhhh

 

Ok got the other code p0430 taken care of, but back to the P0174 just getting it when car idles for a few minutes

 

Maybe you can tell us what you have done so far?

 

I did in the first post !