XJ XJ6 / XJR6 ( X300 ) 1995-1997

Jaguar Misfiring

Thread Tools
 
Search this Thread
 
  #21  
Old 12-23-2022, 12:03 PM
Qvhk's Avatar
Veteran Member
Join Date: Mar 2013
Location: Hong Kong
Posts: 1,026
Received 280 Likes on 208 Posts
Default

If the engine fires up alright almost every time, and if it stalls during cold-start, and it is misfiring, to me fuel or fuel supply is still a prime suspect. Does the pump work continuously or just at start-up? Could it be bad fuel, such as water in tank? If the fuel supply system and fuel are fine, the next suspect would be the coil and ignition system, and the third suspect would be whatever messes up the engine management, such as fuel becoming too rich (such as choked air filter) or too thin (air leak in the engine or exhaust system).
 
The following users liked this post:
Don B (12-23-2022)
  #22  
Old 12-23-2022, 12:21 PM
Adam Samuelsson's Avatar
Junior Member
Thread Starter
Join Date: Oct 2022
Posts: 9
Received 1 Like on 1 Post
Default

Update: I ordered new coils, spark plugs and 02 sensors all brand new so i will continue here if that wont work aswell
 
  #23  
Old 12-23-2022, 04:35 PM
Vee's Avatar
Vee
Vee is offline
Veteran Member
Join Date: May 2010
Location: Arlington, VA
Posts: 4,938
Received 1,575 Likes on 1,223 Posts
Default

Wait, didn't you say you replaced the plugs recently?

You haven't confirmed whether the problem exists when the engine is cold. That a big help. If it happens when cold, 02 sensors shouldn't be in the mix.

At this point, whatever, you've ordered the parts. You can put them on and see what happens from there.

Sometimes better information up front helps narrow down the suspected parts.
 
The following users liked this post:
Don B (12-23-2022)
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
TommyBoah
XJ XJ6 / XJ8 / XJR ( X350 & X358 )
29
01-28-2021 05:10 PM
Mondragon
XJ XJ8 / XJR ( X308 )
0
01-14-2019 10:27 AM
designation
XJ XJ6 / XJR6 ( X300 )
13
04-02-2016 08:26 PM
alec
XJS ( X27 )
31
08-03-2014 06:14 AM
Reverend Sam
XK8 / XKR ( X100 )
14
12-22-2010 12:48 PM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 


Quick Reply: Jaguar Misfiring



All times are GMT -5. The time now is 12:10 PM.