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Old 25 Mar 2013, 02:49 am
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Default 1998 civic lx, main relay not getting power?

have this civic lx 5spd thats not getting any power to the main relay i checked the clicks and it makes none, im not able to pull up any codes cause the ecu doesnt turn on, i also checked the 15a fuse under the hood, Also i replaced the main relay with a new obe and checked it in another vehuckle and it works, What else gives the main relay power??

As of right now im not getting spark(i already changed the dizzy)

Not getting fuel, pump doesnt evan turn on(i replaced the main relay and ecu)
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Old 25 Mar 2013, 03:02 am
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Check all cables and connection to the main fuse box as well as what you can see under the dash box.

Check connections to the ecu as well. Your starter has power to it as well but don't see that helping the power before you try turning over. hmmm
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Old 25 Mar 2013, 03:19 am
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The main relay is above the computer on the other end of the dash near the HVAC box. There will be four wires with power if it is latched and only one if both relay are not closed and three. If only one of the relays close. If you have four with power, and it will not start it is not the main relay that has failed. There is constant power to the relay and switched power from the ignition switch. You will look for the constant power and then switched power to see if the ignition switch is working. If you only have two with the key on it could be the ignition switch that has failed, or you can just swap the relay from your civic.
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Old 25 Mar 2013, 03:37 am
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When you turn the ignition on, see if the warning lights - oil, check engine - come on. If not your ignition switch has failed. It is one of the most common problems in that vintage Honda and there is a recall for it on your 1998 Civic (third from the bottom in second source). Free repairs from the dealer are best.

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Old 25 Mar 2013, 03:46 am
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The thing about your issue is the main fuse box may not be getting power via the battery cable, many of these cables have what we call a fusible link in the cable that reacts just like a fuse.Usually you'll see a piece in the cable that's grey or black etc and that's where the fuse is.What can also happen is inside the fuse box one of the copper circuits that feeds the fuses, relays could be blown or wiring might be fried or damaged.I'd suggest that you take the fuse box apart and check it very closely, plus test the cable/cables feeding it at the battery end and at the fuse box connection end,

Hope that helps and best of luck.By the way having a factory service manual would be helpful at such times so here's a link to download a free manual.

If you need anymore help or advice feel free to contact me.
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