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witcheshollow racing team Offline
#1 Posted : Saturday, 15 December 2007 11:34:13 PM(UTC)
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Gday guys got most of the wiring sorted on this efi into the WB except for three of them.

1st. Brown wire, when traced it went back to the instrument dash, is this hooked to the alternator light? or is this one the Earth?

2nd. Blue wire, ran from the control unit (computer) through the main wireing loom (under the bonnet back into the dash on driver side) to under the dash but joined to nothing?

3rd. White wire, same as above?

any suggestions?

"Such is life"
"Such is life"
vintageholden Offline
#2 Posted : Saturday, 15 December 2007 11:56:45 PM(UTC)
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commodorenut Offline
#3 Posted : Sunday, 16 December 2007 12:34:44 AM(UTC)
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Off the top of my head, without going & getting the manual, the brown wire in a commodore instrument loom is either the tach signal or alternator light. In an EFI the tach signal runs off the negative side of the coil, and not only works the tacho, it's a
Cheers,

Mick
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commodorenut Offline
#4 Posted : Sunday, 16 December 2007 12:34:44 AM(UTC)
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Off the top of my head, without going & getting the manual, the brown wire in a commodore instrument loom is either the tach signal or alternator light. In an EFI the tach signal runs off the negative side of the coil, and not only works the tacho, its al
Cheers,

Mick
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Judge a successful man not on how he treats his peers, but on how he treats those less fortunate.
Dr Terry Offline
#5 Posted : Sunday, 16 December 2007 12:52:57 AM(UTC)
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Hi Guys.

Yes, Commodorenut has got it sussed.

The brown can be the alternator light wire, but if its in the EFI harness its most likely the -ve coil wire for the tacho feed, which also triggers the tachometric relay. This is the main relay for the E
If at first you don't succeed, just call it Version 1.0
Dr Terry Offline
#6 Posted : Sunday, 16 December 2007 12:52:57 AM(UTC)
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Hi Guys.

Yes, Commodorenut has got it sussed.

The brown can be the alternator light wire, but if it's in the EFI harness it's most likely the -ve coil wire for the tacho feed, which also triggers the tachometric relay. This is the main relay for the
If at first you don't succeed, just call it Version 1.0
witcheshollow racing team Offline
#7 Posted : Sunday, 16 December 2007 2:35:51 AM(UTC)
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Thanks for that, the blue and white wire I understand now as it is a berlina that is the donor car and has the standard dash fitted with no trip computer so that is why the wires ran no where. I have the darker brown wire for the negitive side of the coil
"Such is life"
commodorenut Offline
#8 Posted : Sunday, 16 December 2007 8:38:43 AM(UTC)
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I don't know about the alternator one - as far as I was aware it was only the tach pulse (ie, no pulse = no run = kill fuel pump).

Cheers,

Mick
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Cheers,

Mick
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Judge a successful man not on how he treats his peers, but on how he treats those less fortunate.
commodorenut Offline
#9 Posted : Sunday, 16 December 2007 8:38:43 AM(UTC)
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I dont know about the alternator one - as far as I was aware it was only the tach pulse (ie, no pulse = no run = kill fuel pump).

Cheers,

Mick
_______________________________________________________________

A lot of people aim to achieve nothing
Cheers,

Mick
_______________________________________________________________

Judge a successful man not on how he treats his peers, but on how he treats those less fortunate.
witcheshollow racing team Offline
#10 Posted : Tuesday, 18 December 2007 7:41:35 PM(UTC)
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DA! I remembered some time in the middle of the night that I left the commodore "tickle" wire in place for the alt! Guess what the elusive brown wire was for!! I was uming and aring as to using that or leaving the original WB "tickle" wire so I left it in
"Such is life"
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