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Old 02-29-2012, 11:00 AM   #1
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93 yj wont start

i replaced the plugs,wires,cap,rotor and distributer on my 93 yj.now it will not turn over!i put it at tdc and the rotor was pointing to the #1 wire on the cap and still have nothing!!Any one have any ideas??

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Old 02-29-2012, 11:06 AM   #2
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If u hav no spark it might b cps. Can u hear your pump?cps will cause no spark. I have spark and fuel right now and mine still wont start haha. Im gettin a new ecm today ive already done crank and cam sensor

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Old 02-29-2012, 11:19 AM   #3
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You have to make sure it's at TDC and pointing to #1 on the compression stroke. If it was running before the distributor swap you're likely 180 degrees off.
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Old 02-29-2012, 11:33 AM   #4
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how do i tell if it is on the compression stroke?
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Old 02-29-2012, 01:03 PM   #5
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You're supposed to be able to feel compression with your thumb over the spark plug hole and the piston approaching TDC. I tried this for ten minutes and it seemed like there was some compression on both strokes. When I tried to start it there was a hiccup but no fire, so I turned the crank to get back to TDC and the rotor at #1 plug, turned the crank again to get to the next TDC (rotor now 180 off from #1 plug), removed the distributor and reinstalled it with the rotor back at #1 again. Cranked right up.
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Old 02-29-2012, 06:51 PM   #6
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so im trying to time mine after getting new computer i figured it might be just off time. so i find tdc on the compression stroke and point rotor tword number one plug not plug wire right?
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Old 02-29-2012, 07:02 PM   #7
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The rotor tip has to be at the #1 plug position on the distributor cap when the piston is at TDC on the compression stroke.
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Old 02-29-2012, 07:07 PM   #8
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well i thought i had that but it was just hickuping
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Old 02-29-2012, 07:12 PM   #9
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idk im gonna try again tomoro ive replaced everything it has to be timing now i must have messed it up when i chaned the distributor

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