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3vze wiring help needed. Mystery Wire

Old 02-22-2012, 08:51 PM
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3vze wiring help needed. Mystery Wire

Hey guys,
I have a little problem. I am working on finishing up my engine swap and I have a wire that for the life of me I can't figure out where it goes. It comes out of the driver fender well harness and seems to have power going to it. I thought it was a ground and grounded it only to blow the alternator fuse. Thanks for the help!



Last edited by PowerstrokeJoe; 02-22-2012 at 09:32 PM.
Old 02-22-2012, 10:58 PM
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that wire and plug u have in hand are to your alternator. the one what it flat with edges bolts down and the other round one should plug into the back of it.
Old 10-21-2012, 01:22 PM
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Gentlemen, on the topic of 3VZE connectors. Any chance you know where this connector should go to. Every other connector in the wiring harness is allocated:

Please note that this is the right hand drive version of the 3VZE.
Old 10-26-2012, 05:25 AM
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Looks to me like the wire and connector both go to the alt.
Have you got the engine running? if so, is the alternator charging? (battery should measure 13-14.5v with the engine running)
Old 10-26-2012, 06:16 AM
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Originally Posted by Loz 23
Gentlemen, on the topic of 3VZE connectors. Any chance you know where this connector should go to. Every other connector in the wiring harness is allocated:

Please note that this is the right hand drive version of the 3VZE.
I'm 99.999% sure that's the connector for the knock sensor wire

Last edited by MudHippy; 10-26-2012 at 09:20 AM.
Old 10-27-2012, 01:59 AM
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Thanks to both of you for the opinions. The alternator connections were labelled on tear down and have already been connected correctly, so that one can be ruled out

I think you might be right Mudhippy. From the wiring diagram I got hold of the knock sensor was right there in prime position on the wiring harness and missing from the gap in the intake on the car. Problem now is that the knock sensor connector will still be under the intake manifold. Am currently reading the other threads on the KS before going back in and removing parts. Will let you know how it turns out.
Old 10-27-2012, 04:47 PM
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The last wire doesn't that connect to the plenum?
Old 10-27-2012, 08:13 PM
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Big thanks to Mudhippy.
Confirmed that it was the knock sensor connector once the inlet manifold was removed. Like most people, will need to replace the connector wire coming from the sensor out under the inlet manifold to the wiring harness connector.
Will have to wait to get one from the toyota dealership this week. Fingers crossed for no Error 52 code once it is back together.
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