conversion wiring ?
Joined: Sep 2004
Posts: 3,148
Likes: 12
From: Downers Grove, IL
Looks like that diagram was set up the way I usually set my wiring up. The 3 relays to the right are for the fans, then the next one is for the fuel pump. The 3 relays starting from the left are just ignition relays. You don`t HAVE to use them, they can be replaced with fuses, but if you do that you will be adding a potential draw of 80Amps 
across your ignition switch. I don`t like to do that because GM did leave some reserve capacity on the switch, but I don`t know if they left an extra 80A of capacity. In the newer cars GM uses relays just like this schematic does.
across your ignition switch. I don`t like to do that because GM did leave some reserve capacity on the switch, but I don`t know if they left an extra 80A of capacity. In the newer cars GM uses relays just like this schematic does. Trending Topics
Joined: Sep 2004
Posts: 3,148
Likes: 12
From: Downers Grove, IL
Theres 3 relays because they power more than just the 2 banks.
Relay 1 powers the odd bank
Relay 2 powers the even bank
Relay 3 powers the sensors (MAF, O2, etc)
Relay 1 powers the odd bank
Relay 2 powers the even bank
Relay 3 powers the sensors (MAF, O2, etc)
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