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Location:
Melbourne
Registered:
June 2003
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3TGTE wiring issues
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Tue, 09 August 2005 19:48
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Just a few quick questions to those 3TGTE minded persons:
Ive finally had a chance to get the 3t motor into my celica, now i need to sort out the wiring, ive got a loom which was already modified, however there seems to be alot of loose ends that need to be tied up..
now ive tried searching the site pretty thoroughly, but was unsuccessful in finding anything relevant to my query, so here goes;
1. no oxy sensor wire, im assuming this wil be important for the idle/cruise mixture.
2. either the cold start, or the air bypass valve is missing, are both of these essential? after running through the wiring, it seems that it is connected to the brown water temp sensor, would this be cold start or air bypass?
3. 2 coils only 1 ignitor, is this right? and its not connected, any idea which wire goes where?
4. The way the loom is wired up, i assume that all 4 injectors pulse at the same time, and could technically mix up the plugs, is this correct?
5. No ballast resistors, or anything of that sort, correct?
6. no knock control, te PC and PE points are wired to constand ground, correct?
Hope someone can help me
thanks guys
Mik
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Location:
Terrigal
Registered:
May 2002
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Re: 3TGTE wiring issues
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Wed, 10 August 2005 00:12
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I'll try to help with a few of those questions..
Good idea to connect up the oxy sensor, will help with fuel consumption when cruising.. Do you have a ECU pinout diagram? This will tell you where to run the single 02 sensor shielded wire. If you dont have ECU pin out I can dig one up for you.
Cold start and air bypass, not really essential. Wouldn't hurt having the air bypass connected though, this is really easy. Earth one wire and ign + to the other. The cold start connects into the water temp sensor.
2 coils and 1 ignitor is correct.
I understand it fires in the injectors 2 at a time. From memory there is 2 pinouts on the ECU, but hmm maybe they do all just connect together.
No ballast resistor.
PC and PE earthed is fine.
Cheers
Joel
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Location:
Pilbara
Registered:
November 2004
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Re: 3TGTE wiring issues
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Wed, 10 August 2005 01:57
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It depends how the loom has been altered but I believe the injectors are pulsed in two lots #10 and #20 on the wiring diagram. Mine are all wired together and they work fine. I've been told that they all go together by the guy that wired my loom up originally.
No need for ballast resistor.
Oxy sensor is a definite.
I have heard that people run without the knock control box. I have one on mine.
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Location:
Melbourne
Registered:
June 2003
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Re: 3TGTE wiring issues
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Wed, 10 August 2005 07:48
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thanks guys, you have all been very helpful
yeh ive noticed that there are 2 pin outs for injectors #10/#20 but it seems that theyre connected in the wiring down the track. should be ok,
il look into getting the oxy installed.
the air bypass seems pretty straight forward.
with the cold start injector, one goes to the water temp, where does the other connection go?
and finally what do i need to connect to the - and + of both coils?
and on the ignitor:
Theres a round green 3 pin plug with 2 active wires coming from the ignitor, a green and a blue, where they go?
theres also 2 black wires, and a brown on the ignitor?
where do all these go?
thanks for all the help fellas...
Mik
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Location:
Pilbara
Registered:
November 2004
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Re: 3TGTE wiring issues
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Wed, 10 August 2005 09:23
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Have you got Jack Kuhnell's wiring diagram? It's worth downloading. It can be found through the classic celica's site or just have a seacrh through these forums, someones bound to jhave listed the link. If you have a digital camera, take some pics and I'll send you some pics back. There is no secret to wiring the coils, it's basic circutry. I'll send you a pic of my setup if you like. With mine, the cold start injector is wired to the fuel pump pin off the circuit open relay.
admantombs@yahoo.com
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Location:
Melbourne
Registered:
June 2003
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Re: 3TGTE wiring issues
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Wed, 10 August 2005 16:03
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Thanks for all the help guys
TurboRA28:
U sed wire up air bypass valve to ign and earth, it doesnt matter which pin is which does it?
and cold start is connected to the brown water temp sensor, as the green is used for thw to edu..
so one pin of cold start is from sensor, what does the other pin on sensor, and the other pin on the cold start connect to?
that was my last question
thanks again
mik
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