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Touge Master
 Post subject: What type of relay?
PostPosted: Sat Jul 16, 2011 10:12 am 
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Joined: Thu Sep 10, 2009 11:08 am
Posts: 18
Hi there.
I'm rewiring my car (1992 Civic EG K20). I'm following this wiring diagram http://www.hondata.com/images/k20awiring.gif

I'm not going to use the EG main relay but i have encounter a problem. The EG main relay has built-in diodes for voltage supression ECU protection.

Must i use diode protected relays? or i can use standart ones as seen at the above wiring diagram. I also have the same question for the Rad fan relay also switched by the ECU.

Thanks in advance.
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Touge Master
 Post subject: Re: What type of relay?
PostPosted: Mon Jul 25, 2011 8:00 am 
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Joined: Thu Sep 10, 2009 11:08 am
Posts: 18
Anybody?
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Spunkster
 Post subject: Re: What type of relay?
PostPosted: Mon Jul 25, 2011 10:06 am 
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Joined: Fri Sep 20, 2002 5:06 pm
Posts: 11074
Location: Hondata
It would be best to use the same type of relays used by the original manufacturer. They used what they used for a very good reason.
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Touge Master
 Post subject: Re: What type of relay?
PostPosted: Mon Jul 25, 2011 1:23 pm 
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Joined: Thu Sep 10, 2009 11:08 am
Posts: 18
The problem was i couldn't find diode protected relays but finally i've found them. OEM Main relay uses this type of reverse voltage suppression so i think the can do the trick.
The rad fan relay in my EG under-hood relay box uses a resistor for the same reason but i think it can be replaced with a diode protected one. But if there is any reason to do not use them please let me know. I haven't started the wiring yet.

Thanks in advance.
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