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Registered:
May 2002
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Injector Wiring
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Mon, 06 January 2003 07:27
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I'm trying to rewire a computer loom for a 3TGTE, but i'm confused about how the injectors are wired.
Looking at the diagram here-
The injectors #1,#3 and #4 are wired together with the yellow +ive, but then injector #2 connects to this wire in a different place further down the loom.
This is also the same for the white wire, but then the #2 white wire is bridged to the other white wire further down the loom.
Why do they wire it like this as opposed to just wiring ALL injector +ives together and ALL injector grounds together and having one high amp wire from them all? The only reason i can think of why this is done is time delay or somehow separate the duty cyles of the injectors???
Hope someone understands what i'm getting at.
Cheers
Robert
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Location:
Brisbane
Registered:
May 2002
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Re: Injector Wiring
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Mon, 06 January 2003 07:38
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Most early Toyota EFI fires the injectors in batches of two. Methinks that wiring diagram is incorrect; the injectors labelled #10 should be on the same circuit, while the injectors labelled #20 should be on a separate circuit.
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Registered:
May 2002
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Re: Injector Wiring
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Mon, 06 January 2003 08:12
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Ok thanks norbie. so the #10 and #20 circuit shouldn't be bridged as in the pic-
http://users.senet.com.au/~mezz/wiring3.htm
and the yellow wire could be connected to all the injectors from one positive supply wire? Now that makes more sense, from what i've read about the toyota efi thats how its done, but this wiring diagram looked detailed enough to believe. just shows ya not everything on the net is true.
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