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Mystery problem?!!!!

Old 08-31-2010, 12:02 AM
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Default Mystery problem?!!!!

My 93 xj has been having this issue for a while. Sputtering every once in a while like It was starving for fuel. Usually I could just work the throttle for a bit and get it to clear up just fine. But last week I parked outside the local pizza place, had my pizza, came back out and started my jeep... Fired right up, ran great for 2-3mins then the sputtering until it died. Started it up again same thing. Now it doesn't matter what I do the thing fires right up, runs smooth for a min then chokes out... It's like a fuel delivery problem. So far I've replaced these things to try and solve the problem.
Both sensors on throttle body
Fuel pump
Fuel filter
Fuel pressure regulator
Map sensor
Oxygen sensor


The cap and rotor is fine
Plug wires are old
Old 08-31-2010, 12:04 AM
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If anyone has anything they think will help, I'm all ears....
Old 08-31-2010, 12:18 AM
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Engine: 4.0l I6
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hey i had the same problem and it was the fuel pump for me, go to a pepboys (if there is one near you) it only cost $70
Old 08-31-2010, 12:25 AM
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My 95 used to spudder and die from time to time and then one day it died completely. Turns out it was the crank shaft positioning sensor. Went through 3 in one year. Im not sure if it has much to do with your problem but its worth a try. Yours sounds like a fuel related issue but from the sound of it you have replaced just about everything. Just throwing it out there.
Old 09-01-2010, 10:05 AM
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Default Yeah

Already replaced the fuel pump, I'm going to try another crank sensor and see what happens I guess.
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