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Starts then immediately dies

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Old Apr 9, 2011 | 10:38 PM
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Originally Posted by xj^REMY

dude, dont keep throwin things at it & making an ***** load more work for urself...do u kno how much work it'll be to wire a whole new PDC into ur harness?
Calm down...my PDC is alittle messed up because of a very old issue. I didn't think it was bad enough to cause a problem and it hasn't but maybe one of the wires going in is finally messed up enough. I wouldn't be wiring in an entire harness..I would splice it a new PDC. It really wouldn't take that long..not that hard. Probably a good idea anyways because of the previous damage and as long as I do it right there should be no problem

Originally Posted by xj^REMY
Thank you for doing the search.

Originally Posted by xj^REMY
http://www.jeepforum.com/forum/f11/8...n-dies-114884/
http://productforum.autorepairdata.c...ead.php?t=2560

^quick search brought these up....find ur problem first before u kept creating more headache
Il look through these but I've searched quite a bit through here, jeep forum, naxja, and google but have done pretty much everything suggested which is why I'm looking into the PDC wiring.

Originally Posted by xj^REMY
whoa, u have fuel LEAKING out the line before the rail???
No. I'm sorry if it sounded like thats what I meant. I took the fuel line off to make sure gas was getting to the fuel rail. I just don't have a way to check the actual pressure. Or the extra money to buy a tester.
Last edited by 1993F250; Apr 9, 2011 at 10:43 PM.
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Old Apr 9, 2011 | 10:47 PM
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Also I'm going to take my throttle body off tomorrow and thoroughly clean it. I read that the... just forgot what it's called, I think it's the TPS?...can cause similar issues if the valve gets real gunked up.
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Old Apr 9, 2011 | 10:49 PM
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down load this and search in troubleshooting section maybe theres something useful..........http://www.filestube.com/537d2723635...ual-84-93.html
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Old Apr 10, 2011 | 12:12 AM
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I have a Chilton. Nothing all that helpful. Only no start, hard start, stalling when u give it gas
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Old Apr 10, 2011 | 12:14 AM
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Originally Posted by freegdr
replaced the electric ignition switch right?
Sorry just saw this. Yes I replaced the ignition switch but have not replaced the lock cylinder
Last edited by 1993F250; Apr 10, 2011 at 12:33 AM.
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Old Apr 10, 2011 | 04:25 PM
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Not TPS. Idle air control valve.
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Old Apr 10, 2011 | 07:19 PM
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in my manual it states starts then die could be wiring at the coil area,vacuum lines or fuel pressure
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Old Apr 10, 2011 | 08:14 PM
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hook a fuel pressure gauge to ur lines and crank it see if she's holding pressure. your fuel filter sock on your fuel sending unit could be clogged this would cause it to have the pressure to start but die when it tries to keep the pressure up while running

suck squeeze bang blow K.eep I.t S.imple S.tupid
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Old Apr 10, 2011 | 08:17 PM
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Originally Posted by 1993F250
Also I'm going to take my throttle body off tomorrow and thoroughly clean it. I read that the... just forgot what it's called, I think it's the TPS?...can cause similar issues if the valve gets real gunked up.

your M.A.F sensor not tps
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Old Apr 10, 2011 | 09:06 PM
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Originally Posted by freegdr
in my manual it states starts then die could be wiring at the coil area,vacuum lines or fuel pressure
Ok il check the coils ground. I also read it could be the...I think it was called ignition module...under the coil
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Old Apr 10, 2011 | 09:08 PM
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Originally Posted by lolz_jeep
hook a fuel pressure gauge to ur lines and crank it see if she's holding pressure. your fuel filter sock on your fuel sending unit could be clogged this would cause it to have the pressure to start but die when it tries to keep the pressure up while running

suck squeeze bang blow K.eep I.t S.imple S.tupid
I dont have a pressure gauge. Don't know anyone who has one. Don't have the extra money to buy one. I said that in the last few posts.
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Old Apr 10, 2011 | 09:12 PM
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Originally Posted by lolz_jeep

your M.A.F sensor not tps
Already corrected myself. Idle air control not TPS. And my jeep doesn't have an MAF..maybe you meant MAP sensor.
Last edited by 1993F250; Apr 10, 2011 at 09:26 PM.
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Old Apr 11, 2011 | 06:04 AM
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e mail sent
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Old Apr 11, 2011 | 06:38 AM
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Originally Posted by 1993F250
1990 XJ 4.0l I6 automatic. My jeep starts just fine then cuts out and dies almost right away. If I keep the key turned it stays running. I replaced the ignition switch and the cps. I dont think its the anti-theft feature(i have tried everything since i dont have the key) I have voltage to the ignition switch in the 'on' position. My fuel pump ballast resistor was smoking so it is bypassed(just ran the wires together). When the key was turned to the 'on' position the wires for the ballast resistor tested at .01. When it was turned to the 'start' position it topped out at about 8. All my relays appear to be just fine. I tried swapping the fuel pump relay for a new one and nothing. I now have my fuel pump attached to a battery outside the jeep. I'm not that good with wiring and I'm kind of just stuck at this point. The next thing I'm going to do is take off the throttle body and thoroughly clean it. Please somebody know what's wrong with it
when you installed the switch did you adjust it ?
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Old Apr 11, 2011 | 12:08 PM
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How do u mean?
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