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Re: 1993 900s -No spark- Humbly asking for advice please Posted by Justin VanAbrahams [Email] ![]() ![]() In Reply to: 1993 900s -No spark- Humbly asking for advice please, Erick, Fri, 28 Sep 2012 21:27:04 Members do not see ads below this line. - Help Keep This Site Online - Signup |
Don't apologize for the long post. It's far more productive to let everyone know as much as you can about the problem. I'd rather read 100 of your posts than one more "car won't start please help thanks" posts.
The ignition control unit (ICU, little silver box) gets power directly from Pin 15 on they key - key -> fuse 3 -> ICU. You should have +12v across pins 4 and 2. Same with the EZK control unit - key -> fuse 3 -> EZK. You have should +12 across pins 6 and 20 there.
There are only a couple things that can cause a no-spark on this car: No signal from the crank position sensor, no power to the ICU or EZK, or a failed ICU or EZK. That's really it.
If you've got a distributor wired in to the EZK box, you can use that to test. Pull the HT lead off the coil, spin the distributor by hand, and watch for sparks! :)
posted by 69.62.18...
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