vn to vr 0bd2 plug and vr v8 ecu wiring

Holden/Delco Tuning. ALDL, OBD 1.5. Circa 1989 to 2004.
2inil8
Posts: 56
Joined: Fri Jul 02, 2010 10:12 am
cars: 1991 VN SS

vn to vr 0bd2 plug and vr v8 ecu wiring

Post by 2inil8 »

I have a vr ss ecu and a vr aldl plug just wondering
if anyone has a wiring diagram or pics
of the vr plug wired in place of the vn one.
idea is to have the faster baud rate and
use the ob2 aldl plug.
any help on this would be much appreciated.
VK_3800
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cars: SS Torana
Location: NZ

Re: vn to vr 0bd2 plug and vr v8 ecu wiring

Post by VK_3800 »

I use a VR manual ECU in place of the VN one for high speed data, the connection you want is pin A8 on the ECU. Because my car is a manual I swapped the TCC wire (originally pin A7) to this, the wire goes directly the VN diagnostic connector right beside the CEL, alter your cable to suit and it works like a charm with no butchering any wiring.
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Dec_head
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Joined: Thu Dec 17, 2009 12:33 pm
cars: VR Calais

Re: vn to vr 0bd2 plug and vr v8 ecu wiring

Post by Dec_head »

Check this out http://www.techedge.com.au/vehicle/aldl8192/8192hw.htm
It should help you sort it out
2inil8
Posts: 56
Joined: Fri Jul 02, 2010 10:12 am
cars: 1991 VN SS

Re: vn to vr 0bd2 plug and vr v8 ecu wiring

Post by 2inil8 »

so you use the data wire from vn plug and ground and 12v and thats it?
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Holden202T
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Location: Tenambit, NSW

Re: vn to vr 0bd2 plug and vr v8 ecu wiring

Post by Holden202T »

thats all thats normally used in the vr plug for aldl
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delcowizzid
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Re: vn to vr 0bd2 plug and vr v8 ecu wiring

Post by delcowizzid »

you cant use the vn data wire cause its the check engine light wire will need to run another wire to the plug or as above use the tcc wire thats allready in the vn aldl plug and at the ecu
If Its Got Gas Or Ass Count Me In.if it cant be fixed with a hammer you have an electrical problem
2inil8
Posts: 56
Joined: Fri Jul 02, 2010 10:12 am
cars: 1991 VN SS

Re: vn to vr 0bd2 plug and vr v8 ecu wiring

Post by 2inil8 »

can i confirm its plug A pin 8 grey-red stripe on vn harness? a7 is pink.
im patching in an obd2 aldl plug from vr/vs btw.
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Dec_head
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cars: VR Calais

Re: vn to vr 0bd2 plug and vr v8 ecu wiring

Post by Dec_head »

Pin a8 from the ecm should go to pin 9 on the vr vs obd2 type connector
Heres a direct link to a vr v8 wiring diagram on robs site http://memcals.com/pdf/VRV8%20Wiring%20Diagram.pdf
2inil8
Posts: 56
Joined: Fri Jul 02, 2010 10:12 am
cars: 1991 VN SS

Re: vn to vr 0bd2 plug and vr v8 ecu wiring

Post by 2inil8 »

ok worked it out nothing is there on a8 on vn plug,im going to
remove old white /black data and put into a8 then wire to pin 9
on vr connector.
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delcowizzid
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Location: Wellington NZ

Re: vn to vr 0bd2 plug and vr v8 ecu wiring

Post by delcowizzid »

you cant do it
If Its Got Gas Or Ass Count Me In.if it cant be fixed with a hammer you have an electrical problem