Hello guys,
I recently bought a Jaguar XJ X351 2.0T petrol year 2014 with 134k Kms not miles.

The issue i am having is the vehicle is hesitating while accelerating mostly between 3-5k rpm.
When i am full on throlle the car lacks power and i can’t go past 140 km/hr.
But the fun part is if i accelerate gently to 5-6k rpm and keep the high rpm for around 5-10 minutes the car returns to normal.
The hesitation would disappear and full power seems to be restored. The vehicle would drive normally after that. Even if i restart the vehicle the issue would disappear.
But if i drive at low rpm, even after hours of driving the hesitation will stay. It goes away only after driving at high rpm without flooring the gas pedal.
The car drives normally without any issue no noticeable engine misfire except the hesitation while driving. Cold start is normal without any shaking but it’s longer than other vehicles.

Thought it to be the gearbox but i guess it should be consistent if there was an issue with it. No Gearbox dtc code stored.

A mechanic told me could be the timing chain but he’s not sure,
No engine light
Got engine light and car went into limp mode only once while was going on a steep road(engine performance reduced) on dash
Restarted the vehicle and the fault went away
dtc code stored are(camshaft position sensor, O2 sensor, engine misfire, turbo underboost)
Once i got catalyst damage
Note* Car hesitates only when accelerating 3k-5k rpm
its drives verywell at low rpm

I am thinking clogged catalytic converter, maybe?

Anyone got this issue?
What are the possible causes?
What can be a solution?

Any help would be appreciated, Thanks

 

Hi guys.
Some new problem
After discovering that one turbo leaks oil, made the smoke test for leaks. No leaks discovered
Then used icarsoft for a scan.
P0033-00
Jaguar x351 left hand drive
Passenger turbo leaks oil. Front and back
The bypass valve could be guilty for turbo leaking? Just got them refurbed professionaly about 3 months ago. Actuator came back ok. Only like 1000 km on them. Am that is the only error.
Please….sime advised opinions would be great.

And some ideas about possible risks and dangers with drive-ing it like this.…
I all ready had a spirited discussion with the shop.
They checked the actuator and gave it the ok at the time of the refurb.
Now…. They said that if its the turbo failing and case of warranty they are going to refurb for free and also pay the hand work for getting the engine off the car to get the turbo out.

So… ideas? Advises?
Word from the wise please 🙏

Ps: does someone have part number for the actuators? Both of them?