PARTS ALREADY REPLACED.
Fuses and relays are good triple checked.
I dont know if this is the proper place for my post. Im hoping someone can help me as Im out of ideas. My father’s 99 Honda was running fine he took it to dinner ate came out and it wouldnt start. I took a look at the car and noticed it has a no spark issue. I replaced the ICM with no luck I than began a step by step elimination of possible problems. I discovered no power getting to the main relay, test the relay and it tested out fine I purchased a new one anyway and replaced it but still had no power to the relay I also noticed even after replacing the main relay I was getting no communication from the ECU, no security light, no C.E.L, no Maintance light even. As a test I jumped power to the main relay and got all the appropriate lights on the dash and the car started up no problem I tested this several times but once the jumper was removed the car revered back to the orginial problem; No spark, No start and no communication from the ECU. After several more days of pulling my hair out I decided to just put the jumper back and test drive it. It drove fine. Once back home I then further tested and it appears the ECU is not sending the switching signal to the ICM to get the coil to create spark. I noticed the coil was split and had some black silcon coming of it in the distributor so I replaced that but still no spark. The ICM and coil are getting 12v but apparently they are not receiving ground. As I said I already switched out to a different ECU and iginition with no luck and this is a new ICM and distributor. Does anyone have any ideas?
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