Cherokee xj 1995 misfire
Thread Starter
Newbie
Joined: May 2017
Posts: 25
Likes: 0
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
Thread Starter
Newbie
Joined: May 2017
Posts: 25
Likes: 0
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 ,,
CF Veteran
Joined: Mar 2015
Posts: 1,203
Likes: 155
From: Northern CT
Year: 1995
Model: Cherokee
Engine: Turbo 4.0
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?
Thread Starter
Newbie
Joined: May 2017
Posts: 25
Likes: 0
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
Jan 1, 2014 10:22 AM
ThE_CaPtaIn
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
8
Jul 27, 2011 05:40 PM
northline76
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
4
Jul 17, 2011 07:25 PM
EFIeagle
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
2
Nov 21, 2010 05:03 PM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)