2005 XJ8 will not accelerate pass 2000 rpm
#1
2005 XJ8 will not accelerate pass 2000 rpm
Car will not go pass 2000 rpm after an hour drive but run fine when cold start in morning. But if I accelerate with full throttle the car jerks strongly this is when the car won't go pass 2000 rpm. No code is showing. Had throttle body and fuel injectors cleaned also replaced fuel filter. The car have 80K mile. But if I pull over and shut down engine then re-start the car run fine. Anybody ever experienced this?? Thanks is advance.
#2
Join Date: Jan 2012
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#3
#4
Cheers
#5
#6
Tps is cheep and not a big job to do. One thing is guaranteed it will fail at some point I would do it if you are over 100,000km's just as a precaution.
While talking precautions, do the earths behind the headlamps as well. These are the same as they will give you issues at some point.
Finally it also looks like a blocked cat issue. If you still have the original one its worth doing as well.
Ps blocked cats wont give you a code till well after the engine issues occur
First stage feels/seems like pinging on acceleration
Second Stage major loss of power
Third stage codes
Read cambo's thread on this
Cheers
34by151
While talking precautions, do the earths behind the headlamps as well. These are the same as they will give you issues at some point.
Finally it also looks like a blocked cat issue. If you still have the original one its worth doing as well.
Ps blocked cats wont give you a code till well after the engine issues occur
First stage feels/seems like pinging on acceleration
Second Stage major loss of power
Third stage codes
Read cambo's thread on this
Cheers
34by151
Last edited by 34by151; 07-09-2018 at 03:51 PM.
#7
Tps is cheep and not a big job to do. One thing is guaranteed it will fail at some point I would do it if you are over 100,000km's just as a precaution.
While talking precautions, do the earths behind the headlamps as well. These are the same as they will give you issues at some point.
Finally it also looks like a blocked cat issue. If you still have the original one its worth doing as well.
Ps blocked cats wont give you a code till well after the engine issues occur
First stage feels/seems like pinging on acceleration
Second Stage major loss of power
Third stage codes
Read cambo's thread on this
Cheers
34by151
While talking precautions, do the earths behind the headlamps as well. These are the same as they will give you issues at some point.
Finally it also looks like a blocked cat issue. If you still have the original one its worth doing as well.
Ps blocked cats wont give you a code till well after the engine issues occur
First stage feels/seems like pinging on acceleration
Second Stage major loss of power
Third stage codes
Read cambo's thread on this
Cheers
34by151
Many Thanks
Trending Topics
#8
Both will give you codes however the tps code clears when you restart the engine provided its not a failed tps.
To explain the tps has 2 restive sensors (tracks) in parallel. If the ecu gets different readings or missing reading on one it will go into limp mode.
This can occur on a dead spot on the tps tracks.
Shutdown, and restart will clear it provided the throttle is not in the dead spot when you restart.
If it is you will get codes and an engine light
This will clear with a shutdown/key out provided the throttle is not in the dead spot when you restart.
Id suggest you read the codes while the fault is occurring. Ie dont shutdown
Cheers
34by151
To explain the tps has 2 restive sensors (tracks) in parallel. If the ecu gets different readings or missing reading on one it will go into limp mode.
This can occur on a dead spot on the tps tracks.
Shutdown, and restart will clear it provided the throttle is not in the dead spot when you restart.
If it is you will get codes and an engine light
This will clear with a shutdown/key out provided the throttle is not in the dead spot when you restart.
Id suggest you read the codes while the fault is occurring. Ie dont shutdown
Cheers
34by151
#9
Both will give you codes however the tps code clears when you restart the engine provided its not a failed tps.
To explain the tps has 2 restive sensors (tracks) in parallel. If the ecu gets different readings or missing reading on one it will go into limp mode.
This can occur on a dead spot on the tps tracks.
Shutdown, and restart will clear it provided the throttle is not in the dead spot when you restart.
If it is you will get codes and an engine light
This will clear with a shutdown/key out provided the throttle is not in the dead spot when you restart.
Id suggest you read the codes while the fault is occurring. Ie dont shutdown
Cheers
34by151
To explain the tps has 2 restive sensors (tracks) in parallel. If the ecu gets different readings or missing reading on one it will go into limp mode.
This can occur on a dead spot on the tps tracks.
Shutdown, and restart will clear it provided the throttle is not in the dead spot when you restart.
If it is you will get codes and an engine light
This will clear with a shutdown/key out provided the throttle is not in the dead spot when you restart.
Id suggest you read the codes while the fault is occurring. Ie dont shutdown
Cheers
34by151
What I got was all kind of codes :-(
P0305 - Cylinder 5 misfire detected
P0303 - Cylinder 3 misfire detected
P0301 - Cylinder 1 misfire detected
P0300 - Random misfire detected
P1313 - Misfire rate catalyst damage bank 1
Any suggestion mate.
Many Thanks
Cheers
#10
First step is to clear the codes
Swap the coils from 1,3 and 5 to other cylinders
If the codes come back on the new cylinders change out the coils
If they come back on the same ones change the plugs
No I prefer to change the coils only as they fail but change plugs all at once.
How you do it is up to you
The P1313 is a response to the o2 being off on 1,3,and 5 it will go away when you sort out the plugs/coils
Once that is sorted Id look at replacing the cats as you are well overdue at 80K Miles
Cheers
34by151
Swap the coils from 1,3 and 5 to other cylinders
If the codes come back on the new cylinders change out the coils
If they come back on the same ones change the plugs
No I prefer to change the coils only as they fail but change plugs all at once.
How you do it is up to you
The P1313 is a response to the o2 being off on 1,3,and 5 it will go away when you sort out the plugs/coils
Once that is sorted Id look at replacing the cats as you are well overdue at 80K Miles
Cheers
34by151
The following users liked this post:
retaildad (07-28-2018)
#11
First step is to clear the codes
Swap the coils from 1,3 and 5 to other cylinders
If the codes come back on the new cylinders change out the coils
If they come back on the same ones change the plugs
No I prefer to change the coils only as they fail but change plugs all at once.
How you do it is up to you
The P1313 is a response to the o2 being off on 1,3,and 5 it will go away when you sort out the plugs/coils
Once that is sorted Id look at replacing the cats as you are well overdue at 80K Miles
Cheers
34by151
Swap the coils from 1,3 and 5 to other cylinders
If the codes come back on the new cylinders change out the coils
If they come back on the same ones change the plugs
No I prefer to change the coils only as they fail but change plugs all at once.
How you do it is up to you
The P1313 is a response to the o2 being off on 1,3,and 5 it will go away when you sort out the plugs/coils
Once that is sorted Id look at replacing the cats as you are well overdue at 80K Miles
Cheers
34by151
I went ahead and replaced 3 coil since I bought them while back. I took out all 3 plugs and they seems to be in good shape.
Problem came back. So I came to notice on my last code reading there was also P0231 "Fuel pump secondary circuit low."
I googled and found some forum about fuel pump issue so I decided to replaced a pump from ali express which cost $15 but don't know how long it will last and problem solved.
Thank you again for helping out.
Cheers
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