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No Spark from coil.

Bero13

NAXJA Forum User
Location
Vanderhoof BC
I have an 87 xj, 4.0L, aw-4. I'm not getting any spark from the coil. I changed the CPS, the coil, and the module. there is still nothing. A mechanic told me how to check the ignition pickup or whatever that part in the bottom of the distributor. and it seems to checkout. what else could it be. pls help.
 
Are you getting fuel? If the injectors are not going either, the first suspect is the CPS sensor, but you changed that already. Good battery and the ground strap between the firewall and the back of the valve cover in good shape?
 
Check for 12 volts going in to coil while cranking. If you have current there, then you know the problem is with the "signal to spark" side. If no current, it takes your diagnostics in a different direction.
 
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