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Location:
Sydney
Registered:
May 2002
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1986 AE82 twin cam diagnostics plug???
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Wed, 29 January 2003 03:47
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Hey all,
Where is the diagnostics plug on an 1986 ae82 twin cam???
I want to check the timing and you have to connect two of the diagnostic pins.
Thanks for your help.
Jono.
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Formerly TRD_RoLLa
Registered:
May 2002
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Re: 1986 AE82 twin cam diagnostics plug???
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Wed, 29 January 2003 12:06
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Its the yellow plug located near the front windscreen wiper motor. It has 2 wedge female connections. Jump the connection with anything that conducts and presto.
Your engine check light should now be on/flashing.
timing is 10deg. BTDC as u prob know 
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Location:
Australia
Registered:
January 2003
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Re: 1986 AE82 twin cam diagnostics plug???
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Thu, 30 January 2003 08:47
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hehe. it took me so so long to work that out when i got my first twincam! i understand the pain...
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Location:
Coffs
Registered:
May 2002
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Re: 1986 AE82 twin cam diagnostics plug???
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Thu, 30 January 2003 12:11
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Heres a photo that might help you.
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Location:
Sydney
Registered:
May 2002
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Re: 1986 AE82 twin cam diagnostics plug???
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Thu, 30 January 2003 21:05
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Thanks for the replies.
I thought it was the round two pin yellow plug in the left of the photo.
Cheers.
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Formerly TRD_RoLLa
Registered:
May 2002
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Re: 1986 AE82 twin cam diagnostics plug???
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Fri, 31 January 2003 06:11
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yeh its the round one
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Location:
Coffs
Registered:
May 2002
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Re: 1986 AE82 twin cam diagnostics plug???
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Sat, 01 February 2003 03:27
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Well i didnt draw that pic. Was on my computer somewhere.
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Location:
Melbourne
Registered:
January 2003
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Re: 1986 AE82 twin cam diagnostics plug???
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Mon, 28 February 2005 06:13
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I know this is an old thread.
Can someone tell me which connector there is.
There is 3 i have doubts with
Round plug 2 vertical slots? Rubber cover?
Round plug with plastic cover
I heard this is the wrong one but squarish 1 vertical 1 horizontal.
Maybe a photo or drawing to show?
Thanks
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Location:
Melbourne
Registered:
January 2003
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Re: 1986 AE82 twin cam diagnostics plug???
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Tue, 01 March 2005 00:08
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I found that connector.
What does that connector do anyway. check light comes on in 10 blink intervals. supposedly .26 seconds.
Any help would be good.
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Location:
Somewhere on a dirt bowl ...
Registered:
August 2004
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Re: 1986 AE82 twin cam diagnostics plug???
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Wed, 02 March 2005 12:48
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Its used for diagnosing faults etc. A manual like a Haynes will say what all the flashes mean
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Location:
Melbourne
Registered:
January 2003
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Re: 1986 AE82 twin cam diagnostics plug???
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Fri, 11 March 2005 08:17
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That i realise. But crossing crossing the connector whilst doing the timing light? What is the actual result of it? Or is it a precautionary thing? Because i crossed the terminals and sweet jack all happened.
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Location:
Somewhere on a dirt bowl ...
Registered:
August 2004
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Re: 1986 AE82 twin cam diagnostics plug???
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Fri, 11 March 2005 10:50
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I"m not really sure what the go with doing it is, about the only info that i've found so far is that dueing normal idling the timing sits anywhere between 5 deg and 15 deg and by fitting a lump of wire (or SST 09843-whatever) stops the timing from moving around. But i've always just gone for the old style, hook the timing light to Cyl. #1 and to the battery and then use the "looks good, is good" theory. Cause the bloody hose is in the road 
Buts about all i can find on as to why...
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Location:
Melbourne
Registered:
January 2003
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Re: 1986 AE82 twin cam diagnostics plug???
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Fri, 11 March 2005 22:55
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My timing doesn't jump around on idle at operating dtemperature. NOTHING happens when i cross it. Ah well. That means its normal then 
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Location:
NSW, East Coast
Registered:
July 2003
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