My 1994 jeep Cherokee inline 6 doesn't have spark coming from coil, have replaced distributor, crank sensor,ignition coil cap and rotor . Still no spark coming from ignition coil.....help.

Time to meter voltage. Start with the 12V circuit. Are you getting voltage at the coil. Does the voltage fluctuate when the engine cranks? If yes to both check the high voltage circuit. Start with the coil then the distributor then each plug. You should be able to find where the spark is failing.

1994 Jeep, Cherokee?

check all EFI system fuse first with a meter.

that is ASD drop out.
all jeeps from 93 to now have ASD relays.

43 code (nice checking you did) is bad spark.
when the PCM sees bad spark it then shuts every thing down

http://www.fixkick.com/Jeeps/ASD.html

cause is bad ignitor or coil.
the big v8, with the funny locking throttle body... short.
that is true if you crank for 5 full seconds.
to see if CMP sensor fails too.
cmp cam sensor is in the distributor base.
the ignitor is in the PCM, and drives the coil directly.
i presume spark is dead directly at the coil terminal
and is dead the first 2 seconds cranking. right.
takes 2 person to test spark. one at key , 1 and coil
the PCM only allows 2 seconds for spark to happen
if it fails ,it kills the ASD relay.
making trouble shooting tad hard , for those that dont know jeep ASD issues.
if the 5.2L cmp and CKP sensors work right, the PCM then creates spark
it does this via and ignitor.
the coil can be bad, as can the rotor and cap. id replace any old cap and rotor, fast. if the coil tower terminal HV. has good spark.

read failure to start test here
http://www.jeep4x4center.com/knowledge-base/index.htm?utm_source=cj#service
chapter 8D-6

and page 8w-30-4 , coil schematic.
as you can see, the coil has 12vdc key on for 2 seconds.
cranking.
the PCM ground the minus coil pin.
this charges and fires the coil
the ignitor transistor is in the PCM on this car.
The PCM monitors this pin minus , and if it fails to pulse,
it knows the Coil is dead. and then shuts down EVERYTHING EFI wise.

that is how it works.
tricky yes,but true.

you have a ignition modulor in the distributor and the crank positon sensor. I have a 1997 grand cherokee and I go through a few crank position sensor

I would make sure you have voltage to the coil. Could be a fuse or relay problem. Is the check engine light on when you turn the key on ?

Check for spark at any of the sparkplugs.If there is no spark at the plug then replace the distributor ignition pickup coil.

the crankshaft position sensor located between flywheel and trans is where the power source for the coil comes from. I suggest you need change that

CHECK ASD RELAY THAT IS AUTOMATIC SHUTDOWN RELAY IN THE POWER DISTRIBUTION CENTER UNDER THE HOOD IN ENGINE COMPARTMENT.IF ASD RELAY GOOD PROBLEM COULD BE CAMSHAFT SENSOR IN THE DISTRIBUTOR.TO SAVE TIME AND MONEY HAVE JEEP SCANNED FOR CAMSHAFT SENSOR AND CRANKSHAFT SENSOR FAULTS.

wd 40 your flywheel sensor plug

Well it could be many things, But have you relpaced the dist. cap and rotor, within the last 15,000 miles or wires and plugs??? next step is the coil ? then it gets fun. like timing. but I think most jeeps with a Inline 6 have a bullet proof engine for the most part. As we all know there is plenty of semi's on the road. well the same set up is there. as an Inline Jeep. I would have to say 90% of semi's on the road are inline 6 cyl. engines. and may of them go to 1million miles.
so plugs,wires, cap, rotor and ignition coil. that is a good starting point.

The " FIRE" doesnt come to the coil from any of those things you have changed.......The "fire" comes from the coil TO those items!!!! Good luck, RC