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89 no spark and no idea

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Old Oct 1, 2012 | 10:15 PM
  #1  
Rusti's91xj's Avatar
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From: cd'a idaho
Year: 89
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Engine: 4.0
Default 89 no spark and no idea

i have no idea why i have no spark in from coil to cap.i have change coils,wires cap rotor,fuel reg, fuel filter and cps also check grounds and wire harnesses. is there anything i need to look at next or just keep looking?? big thanks for any good info
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Old Oct 1, 2012 | 10:23 PM
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From: Valley Park, MO
Year: 1989
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Engine: 4.0L Renix Freshly Rebuilt!!
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Keep Looking! Hahah jk. Have you checked this out yet? https://www.cherokeeforum.com/f23/te...itings-136452/

Good stuff in there!
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Old Oct 1, 2012 | 10:46 PM
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From: cd'a idaho
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i have tried the ground refresh and the coil icu over haul i guess you could call it but still nothing.
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Old Oct 1, 2012 | 10:58 PM
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Did you try testing the CPS?
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Old Oct 2, 2012 | 09:09 AM
  #5  
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Originally Posted by cmartin2112
Did you try testing the CPS?
That needs to be done next. Takes 2 minutes 42 seconds to do.
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Old Oct 2, 2012 | 11:44 AM
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Have you looked into the pickup coil yet?
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Old Oct 2, 2012 | 03:54 PM
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Originally Posted by gregxgriffin
Have you looked into the pickup coil yet?
Renix has no pick-up coil.
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Old Oct 3, 2012 | 04:12 PM
  #8  
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Oh my bad never had my hands into one
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Old Oct 4, 2012 | 08:27 AM
  #9  
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i lack a volt meter or i would have checked the cps it is new but that doesnt mean much anymore with crappy parts fling off the store shelves.any other ways of checking if its a GOOD one
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Old Oct 4, 2012 | 10:40 AM
  #10  
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Default So true

you hit the nail on the head i was working the same problem on my 95. replaced the camshaft sensor only to find out it was bad after 3 days of troubleshooting. So im on #2 now.
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Old Oct 4, 2012 | 12:01 PM
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From: Valley Park, MO
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Originally Posted by Rusti's91xj
i lack a volt meter or i would have checked the cps it is new but that doesnt mean much anymore with crappy parts fling off the store shelves.any other ways of checking if its a GOOD one
You should go pick up a voltmeter. They are pretty cheap and a very useful tool to have especially on these renix motors.

The only other way I could think of testing it would be to swap out a known good cps off a renix motor.
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Old Oct 4, 2012 | 02:27 PM
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Originally Posted by cmartin2112
You should go pick up a voltmeter. They are pretty cheap and a very useful tool to have especially on these renix motors.

The only other way I could think of testing it would be to swap out a known good cps off a renix motor.
For $15 of the cost of a meter, I'd rather test a cPS than replace it.
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Old Oct 4, 2012 | 06:33 PM
  #13  
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From: Valley Park, MO
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Definitely worth the money!
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Old Oct 4, 2012 | 06:48 PM
  #14  
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Originally Posted by cmartin2112
Definitely worth the money!
Unless, of course, you have the ability to "see" electricity.
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Old Oct 4, 2012 | 06:51 PM
  #15  
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Year: 1989 xj sport 2dr
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Originally Posted by cruiser54
Unless, of course, you have the ability to "see" electricity.
That all depends on the beverage of choice for that evening.
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