How can I repair a 1992 wrangler ecu ? - Page 2 - Jeep Garage - Jeep Forum

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  #13  
Old 09-15-2015, 09:04 PM
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Re: How can I repair a 1992 wrangler ecu ?

(Circuitry repair) said it was repaired and sent it back to me. If there is a good way of checking it without having it in a known running jeep, please let me know.All I know for sure is I haven't gotten it running yet. But, Thank You. For answering me back once again. Any suggestions are welcome.

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Old 09-16-2015, 05:24 AM
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Re: How can I repair a 1992 wrangler ecu ?

I would check if there is 12V at the coil, when ignition switch is in run. Don´t know the wrangler, but expect to have the 12V there only for some seconds, when the engine is not started. So you will need an assistant for this. The ground will be switched by the PCM. If there is 12V at pin 2 from the coil rail connector, then or the coil rail is bad, or the problem is the PCM. If there is never 12V at pin 2, than i would change the auto shutdown relay first. By the way, you did check all the fuses first?
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Old 09-16-2015, 06:00 AM
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Re: How can I repair a 1992 wrangler ecu ?

Thanks for your suggestions. Yes,I did check all fuses and relays in engine compartment. I used an ohm meter on the fuses and put 12v on each relay and checked them also with ohm meter,(open,closed,open). What would cause the service engine light NOT to go off when key is put in on position and left? Is that telling me that ecm is not getting 12v? If the coil is getting 12v doesn't that mean that ecm is too?
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Old 09-20-2015, 05:50 PM
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Re: How can I repair a 1992 wrangler ecu ?

Does anyone know if there is an aftermarket ecm that can be substituted for ecm-56027384. 1992 wrangler 4.0 manual transmission? Apparently (Dodge,Chrysler,Jeep)doesn't believe in standing behind their products, unless it's to push the P.O.S. off the road. I guess that's why everybody would rather own a Toyota. They at least back their products.
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Old 10-05-2015, 09:48 PM
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Re: How can I repair a 1992 wrangler ecu ?

Ecm was bad. Even shipped it to circuitry repair in New York. They attempted to repair it . They replaced (3) capacitors supposedly and sent it back to me. Still didn't work. I found a good used one on EBay. And another one from Rockauto that was supposed to be remanufactured.(3) capacitors changed out. Anyway. It runs now. Thank You!!! To all that replied to me. Btw Dodge / jeep dealer said they couldn't get one. And if they could it would cost ($650).
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Old 10-06-2015, 05:41 AM
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Re: How can I repair a 1992 wrangler ecu ?

Good to hear its fixed. Happy jeeping.
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Old 10-07-2015, 10:00 PM
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Re: How can I repair a 1992 wrangler ecu ?

Thanks again.
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