fuse box wires

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321gazza
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Post Wed Aug 06, 2014 5:15 pm

On my e30 their is a black round connection that is for the engine (engine harness) coming out of the fuse box that you twist to separate when taking engine out, as i'm fitting a engine from a differant car and separate this engine harness can i usethe black and yellow to power the starter and do i need to earth this part of the harness as its strate out of the fuse box.
Grrrmachine
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Post Wed Aug 06, 2014 5:44 pm

The round connector is called the C101 - type that into the Wiki and you'll get the pin-outs. It only has two wires to the fuse box, and neither of them are to power the starter.

The black/yellow wire can be used to TRIGGER your starter motor, but power needs to come from the thick power cables linking the battery/alternator.
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Brianmoooore
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Post Wed Aug 06, 2014 6:59 pm

Although the C101 appears to be connected to the fuse box, only one of the wires actually goes to a fuse. Most of the rest just go in one side of the box and out of the bottom.