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Jeep Wont Start, No fire back to Ignition Coil, Please Help


 
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taskmanbb
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Joined: 24 Feb 2007
Location: South Texas

PostPosted: Sat Feb 24, 2007 1:20 pm    Post subject: Jeep Wont Start, No fire back to Ignition Coil, Please Help Reply with quote

I have a 93 YJ, It isn't getting any fire to the Distributor, I have replaced the Ignition Coil, and the wires I trace back seem to go to the ECM. This seems the next logical part to replace, Has anyone seen this.

I have recently changed the starter,
I have checked the Crankshaft Position Sensor,
Changed the Ignition Coil
Checked all of the wires,

Dont really know where to go from here xcept the computer.

Any suggestions appreciated.
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ddave
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Joined: 25 Feb 2007

PostPosted: Fri Mar 02, 2007 3:00 am    Post subject: Reply with quote

When you say "checked" the CPS, do you mean cleaned? I had the same problem, ended up replacing CPS ($120.00) rather than replacing the spark box ($450.00). Turn your ignition key ON (without turning over) then OFF, ON then OFF then ON again within 5 seconds and wait for the check ingine light to begin a series of flashes(error codes). For example: error code 23 would be identified by two quick flashes a pause then three quick flashes. If another code is in the memery then there would be a longer pause in between the two(or more) codes. Finally. the last code of 55 indicates the all codes have been displayed and the flashes end. Look up the code(s) to see what they mean at: http://www.allpar.com/fix/80s-codes.html Hope this helps.

Last edited by ddave on Fri Mar 02, 2007 3:25 am; edited 1 time in total
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Tardis
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Joined: 07 Aug 2004
Location: Ohio

PostPosted: Fri Mar 02, 2007 3:15 am    Post subject: Reply with quote

Quote:
If you can't get any codes, my guess is you do need another computer.

If you find out the PCM is bad, and you have a 2.5/5spd YJ, I have a used PCM available for it.
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taskmanbb
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Joined: 24 Feb 2007
Location: South Texas

PostPosted: Sun Mar 04, 2007 10:44 am    Post subject: CPS Reply with quote

I cleaned and checked the CPR. Took it to AUTOZONE and went through the test procedure, it checked out. That it the other reason why I think the computer is out. When I go through the sequence to get the fault code nothing happens. Seems like it is dead.
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