Jaguar xj 2012 restricted performance
#1
#2
#3
#4
#5
I am not a mechanic but here are my thoughts nonetheless...
It’s seems strange that it says battery low and yet it is fine. But if it is good, then it is good.
It looks like you also have a low fuel rail pressure code. It could be one of your bank 2 fuel pumps (either high or low pressure pump), as you’re getting misfires on your even cylinders. Smell of fuel with smoke I think is consistent with running rich, which is common with misfires. Injectors also seem to go in a pretty dramatic fashion on these cars, so that could also be something to check too.
The big worry is that if you run rich for too long you will destroy your catalytic converter. So I would get this checked out soon as a new fuel pump is cheaper than a new cat.
Perhaps someone else with more mechanic experience can chime in with their thoughts.
It’s seems strange that it says battery low and yet it is fine. But if it is good, then it is good.
It looks like you also have a low fuel rail pressure code. It could be one of your bank 2 fuel pumps (either high or low pressure pump), as you’re getting misfires on your even cylinders. Smell of fuel with smoke I think is consistent with running rich, which is common with misfires. Injectors also seem to go in a pretty dramatic fashion on these cars, so that could also be something to check too.
The big worry is that if you run rich for too long you will destroy your catalytic converter. So I would get this checked out soon as a new fuel pump is cheaper than a new cat.
Perhaps someone else with more mechanic experience can chime in with their thoughts.
#6
#7
Trending Topics
#8
The common recommendation for injector issues is to run a can of BG44K through the fuel tank to try to unclog any debris in the fuel line. Not sure if it can fix this issue but may be worth a try. Otherwise I’d head to the local independent shop to get a proper diagnosis.
All the best.
#9
#11
I think the main goal is to get it to mix after adding it to your fuel tank. That’s why you pump in gas after adding it.
Id probably pour it into the half tank while standing at the pump, and then fill it up with gas. Then you’ll need to drive it for a bit to let it work.
Again if this doesn’t work, I’d take it in for diagnosis.
Also, were those all the diagnostic codes you got? It looks like the screen may have run out of room?
All the best.
Id probably pour it into the half tank while standing at the pump, and then fill it up with gas. Then you’ll need to drive it for a bit to let it work.
Again if this doesn’t work, I’d take it in for diagnosis.
Also, were those all the diagnostic codes you got? It looks like the screen may have run out of room?
All the best.
#14
The basic issue here is almost certainly the fact that the "good" battery is not putting out sufficient voltage to properly power the various modules. By far the largest number of complaints in modern luxury cars is related to low battery voltage (and this is the reason that every, yes, every luxury car manufacturer fro Bentley to Jaguar to BMW to...markets the CTEK battery maintainer under their own brand names). The symptoms can be in any system of the car.
In this case: fully charge the battery -fully. Not w, disconnect the battery for a full 30 seconds. Reconnect. This effectively reboots all the modules.
In all probability there is nothing at all wrong with the systems (but the recommendations about the fuel system are valid).
There is a great deal of information about the above on the XK and F-Type forums because this sort of issue crops up more frequently on models used not daily or used for short runs.
In this case: fully charge the battery -fully. Not w, disconnect the battery for a full 30 seconds. Reconnect. This effectively reboots all the modules.
In all probability there is nothing at all wrong with the systems (but the recommendations about the fuel system are valid).
There is a great deal of information about the above on the XK and F-Type forums because this sort of issue crops up more frequently on models used not daily or used for short runs.
Last edited by sov211; 08-17-2019 at 02:41 PM.
#15
The following users liked this post:
mikebaker3 (08-18-2019)
Thread
Thread Starter
Forum
Replies
Last Post
Terrance Williams
S-Type / S type R Supercharged V8 ( X200 )
5
08-26-2015 11:50 AM
ChuckB
XK8 / XKR ( X100 )
12
12-02-2014 08:02 AM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)