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97 xj runs ruff or wont start

Old 09-02-2015, 10:02 AM
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Default 97 xj runs ruff or wont start

randomly upon starting while hot it will run ruff for a bit until i rev it up

and the exhaust will smell strong,
recently its doing it everytime i start it warm when offroad,
twice now it has failed to start , i hear the fuel pump prime i kept trying and waiting till it starts,
i tried to check spark but then it started again, also the airbag lights comes on after hitting bumps wheeling till i restart,
when it wouldn't start at all , then it does i loose the radio settings .
i never unhooked the batterie, also one time the radio and dash lights didnt work till the next day, no check engine light
97 2 door base model at sport
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Old 09-02-2015, 10:24 AM
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Does your CHECK ENGINE bulb work when you turn the ignition switch to ON/RUN, before cranking the engine?
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Old 09-03-2015, 05:40 AM
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yes the lights good and it always runs normal from a cold start i thought cps but the radio losing power, i would like to get rid of the neutral safety also if i can i did on my old blazer , and it came in handy , like it dying while on a hill climb
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Old 09-08-2015, 01:09 AM
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i died again while i was driving and there was no spark.
tested with timing light i unhooked the batterie for 20 min then it started , its running a bit rough now till you start driving it
if i plug in another 97 cpu will it not work because the milage is different, i also dont know how to unplug the cpu, it feels like it may break,
the wires going under the connectors wiggle back and forth real easy like a inch
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Old 09-16-2015, 11:31 AM
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so the jeep hasnt been doing the ruff running after warm start up or cold start up , it fixed itself,
instead it is dieng more often and has no spark
it is the cpu it feels very hot and every wire under the hood gets hot, i put a ice pack or pour water on it and it starts back up
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