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Location:
Manchester, UK
Registered:
October 2004
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4AGZE wiring
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Thu, 28 April 2005 13:06
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Hi,
Does anyone know when you wire up a 4AGZE in an AE92 corolla Gti where to get the ignition source from? As i can tell the ignition needs 12 volts when the key is turned and then this 12volts should disappear once the car has started.
Is the wire from the 6 pin black connector (black and white one, pin no 4 which is labelled on some diagrams as starter source from starter relay the one to be connected to the 12 pin plug?
Sorry this post is a bit rushed will revise it later any help would be apprecuiated in the mean time!
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Toymods Social Secretary
Location:
Sydney
Registered:
July 2002
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Re: 4AGZE wiring
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Fri, 29 April 2005 02:40
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there are two ignition circuits... one is the "sub-ign" circuit which turns off whilst cranking as you mentioned... the other is the MAIN IGN circuit which STAYS ON whilst cranking.
these names above i made up, but they explain it well.
Your coil (and most of your engine/ECU) gets its power from the EFI main relay - which is a relay triggered by the main ign signal..... this wire is BLACK/orange
read the 4agze ECU pinout descriptions and wiring diagrams in the club4ag.com tech reference.
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Location:
Manchester, UK
Registered:
October 2004
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Re: 4AGZE wiring
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Thu, 05 May 2005 11:56
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I have gone through the wiring diagrams and pinout diagrams on club4ag.com
As i can tell the 22 pin Y connector plug has a pin labelled STA which is black with a white stripe and the description is ignition starter. Currently I have no wire in this pin. Should the Black/Orange wire from the 6 pin black plug be inserted here? I have not checked yet which of the two wires on the 6 pin black plug have a 12volt connection. Is it the wire with the 12volts that needs to be placed into pin 11 on the 22 pin plug.
If this is the case then doesnt that leave a wire coming from the other side (dash side) of the 6 pin plug without a corresponding wire to marry up to? Is the wire then redundant and does not serve a purpose?
Thanks
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Location:
Manchester, UK
Registered:
October 2004
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Re: 4AGZE wiring
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Fri, 06 May 2005 12:07
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Bump
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Location:
Adelaide
Registered:
May 2003
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Re: 4AGZE wiring
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Fri, 06 May 2005 12:12
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STA (B-W) goes to your starter. Should be a signal in there somewhere for it.
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I supported Toymods
Location:
melbourne
Registered:
June 2002
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Re: 4AGZE wiring
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Fri, 06 May 2005 12:16
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i had some issues with this,
the wire that goes to your starter is a switched earth (from memory) trace this wire to a relay, then find which of the wires going to the relay goes live when you turn the key.
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Location:
Manchester, UK
Registered:
October 2004
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Re: 4AGZE wiring
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Fri, 06 May 2005 14:17
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I know the black/white wire comes from the starter, if I follow the wire from the engine bay it comes to a 6 pin plug which connects to a corresponding 6 pin plug on the dash side. Do I need to simply move this wire from its current location to the 22pin ECU plug, pin no 11 (STA) or do I need to splice into this wire and add a new section of wire which will go to STA?
Thanks for your help so far everyone.
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Toymods Social Secretary
Location:
Sydney
Registered:
July 2002
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Re: 4AGZE wiring
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Fri, 06 May 2005 22:38
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splice into it just so that the ECU knows when you are cranking the starter motor and can act accordingly 
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Location:
Manchester, UK
Registered:
October 2004
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Re: 4AGZE wiring
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Sun, 08 May 2005 10:25
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Ok i spliced in the wire but i still have no spark. I am trying to figure out the wiring for the 22 pin dash connector. If the tacho wire (pin18-black wire) is connectrd does this kill the spark. Ims ure I have read this somewhere. Also if anyone knows how to wire this plug up and what pins need moving Iw ould appreciate the advice.
Thanks guys.
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Location:
Manchester, UK
Registered:
October 2004
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Re: 4AGZE wiring
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Mon, 09 May 2005 11:50
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Bump
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