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baldeagle
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5 Posts
Discussion Starter #1
89 YJ 258 I6<> BA/10 trans w/ NP 231.I am going to convert to the Mopar MPI. Question<>I want to put a external fuel pump on,but I hear you need a Low pressure pusher pump.I am lost.Why? and where do I go to get one?This is one of many questions I will have in the near future.You guy's will probally get sick of me. Thanks
 

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Internet Owner
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9,510 Posts
Welcome.
The FI system requires a low pressure pump. You can swap fuel tanks with a newer or four banger YJ that has the fuel pump in the tank.
You can get an external pump but you will need a pressure regulator for it also.
Hope that helps.
 

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Premium Member
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1,719 Posts
My 1990 also has the add on F/I system from Mopar. I'd recommend registering on http://www.hesco.us/forum/default.asp and ask Leee these questions. He works there and is great in answering all questions necessary. They also have good write ups on the external fuel pump needed and sell the necessary parts.
 

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Premium Member
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6,657 Posts
I am running a 360 with FI in my 90 YJ and this is the setup I used.

Fram G2 filter between the tank and pump.
Airtex E2000 external fuel pump
FF832 fuel filter after pump (this filter has a built in pressure regulator and return line for the returnless injection setups)

All these parts are over the counter and together will cost about $130 bucks.
Make sure you swap out any soft line for high pressure soft line.
 
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