Cherokee xj 1995 misfire
11-02-2018, 09:20 PM
#1
Newbie
Thread Starter
Join Date: May 2017
Posts: 25
Likes: 0
Received 0 Likes
on
0 Posts
Model: Cherokee
Cherokee xj 1995 misfire
Hi folks ..
i have my 1995 cherokee xj ,, i i did a little modification to the car .. added a 2.5 inche long headers , and i swapped the intake manifold to + 2000 with an LS throttle ,, after i did all that i noticed when i hit the gas heavey acceleration the car feel like misfiring a bit but keeps moving , i berly feel it .. when it was all stock i havent had any problem with it , i cant figure out what the problem is .. anyone have an idea please help
thank you
i have my 1995 cherokee xj ,, i i did a little modification to the car .. added a 2.5 inche long headers , and i swapped the intake manifold to + 2000 with an LS throttle ,, after i did all that i noticed when i hit the gas heavey acceleration the car feel like misfiring a bit but keeps moving , i berly feel it .. when it was all stock i havent had any problem with it , i cant figure out what the problem is .. anyone have an idea please help
thank you
11-06-2018, 07:22 AM
#2
Newbie
Thread Starter
Join Date: May 2017
Posts: 25
Likes: 0
Received 0 Likes
on
0 Posts
Model: Cherokee
Anyway , since no one respond ,
i swapped the intake manifold to a regular tb size
and solved the problem , so i think i had to replace the fuel pump to a better pressure to avoid misfire with bigger tb ,,
i swapped the intake manifold to a regular tb size
and solved the problem , so i think i had to replace the fuel pump to a better pressure to avoid misfire with bigger tb ,,
11-06-2018, 08:01 AM
#3
CF Veteran
95 regulator should be on the rail. You can test your fuel pressure at the rail port. I would think the ecu would be able to compensate for the TB. How big is it?
11-06-2018, 11:18 AM
#4
Newbie
Thread Starter
Join Date: May 2017
Posts: 25
Likes: 0
Received 0 Likes
on
0 Posts
Model: Cherokee
It was a 4 inches tb for LS1 , my friend have it in his car and have no issue , but i belive he replaced the fuel pump at early stage .. when i installed it on my car i noticed no huge differnce and face a misfire maybe the engine cant handle much of air flow , or 4inches tb is too big for a 4.0 engine
Thread
Thread Starter
Forum
Replies
Last Post
RunnerInPink
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
7
01-01-2014 10:22 AM
ThE_CaPtaIn
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
8
07-27-2011 05:40 PM
northline76
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
4
07-17-2011 07:25 PM
EFIeagle
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
2
11-21-2010 05:03 PM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)