Chrysler Repair: 1995 Cirrus no start, orange wire, primary winding


Question
QUESTION: Hi Roland
 Don't know if I explained my self right. When I measured
for 12 volts I did measure on plug of the dark green/orange
with not being plugged in to distrib cranked the engine seen 12 volts. I also measured the pin terminal on the distrib where this wire plugs into.when cranking engine over no volts. Not sure if this makes a difference.
         Thanks Dave

ANSWER: Hi Dave,
That wire is the supply for the primary winding of the coil and that 12V means the ASD is closing and the sensors must be working or the ASD wouldn't close. No voltage on its pin when unplugged is perfectly reasonable.  So you should get spark while cranking unless the coil, rotor or distributor cap were bad. If you still have no codes, I would measure the rotor (sping contact to tip) to be sure it isn't open, and examine the cap for any cracks, and if you find none, then the coil has to be bad.
The only other possibility is that the pcm is not 'driving' the primary of the coil which you could check  by probing pin 6 of the coil plug while the ignition is on, everything is plugged together, and you turn the engine over. If that isn't pulsing then the pcm is suspect.
If it is pulsing, and you tell me that you definitely have 12V on the dark green/orange wire while cranking, then the coil has to be bad. As a final check on the coil, check whether the resistance between pin 6 and pin 5 of the distributor itself is 0.6 to 0.8 ohms, and check that the resistance between the high voltage output of the coil and pin 5 to see if from 12,500 and 18,000 ohms.
Let me know if you make any progress.
Roland

---------- FOLLOW-UP ----------

QUESTION: Hi Roland
 It looked like the coil and dist reading were off so
removed it from the engine checked pin 1 to high voltage
of the coil measured 9.48 ohms same as when it was in the engine. Any other measurement can I do with this coil+dist
to see if it is bad.
         Thanks Dave

Answer
Hi Dave,
It seems to me that the resistance between the secondary high voltage output of the ignition coil and the primary winding (pin 1 of the 2-pin plug, correct?) should be many thousands of ohms, not 10 ohms. So on that basis I would believe that you have a broken coil. Just in case, when you go to get a replacement (rebuilt probably due to cost, or used) do the same measurement and see what you get.
Roland