PICS of said harness
Mystery 4AGE Harness Not Cut--Missing ECU Plug 3?
-
RedvalkyrieOne
- Club4AG Regular
- Posts: 23
- Joined: Mon Nov 17, 2014 2:40 am
Mystery 4AGE Harness Not Cut--Missing ECU Plug 3?
A buddy of mine has a 4age engine harness with the part number 82121-12400D which comes up as a 1986 AE86 GTS harness, The issue is that the harness is missing plug 3 for the ECU. It has plugs 1 and 2 but not 3. This clearly appears, to me at least, to be a USDM harness as it does have the AFM terminal connector. Now, according to the wiring diagram...the AFM wiring should run straight to the ECU as lines VC and VS. So, there's a AFM plug with wires that go to some mystery spot. This harness has not been cut. Is there a separate sub harness for that ECU plug 3 that we don't know about?
PICS of said harness
PICS of said harness
Re: Mystery 4AGE Harness Not Cut--Missing ECU Plug 3?
According to the information provided here...
http://club4ag.com/faq_and_tech_pages/E ... 04A-GE.htm
... you should have the 14-pin "C*" wire to wire (in-line) plug.
The wires that are connected by this plug are marked on the wiring diagram
with C* in a square box with two arrowheads on one side. Above the box will
be the number of the corresponding pin in the C* connector.
One side of the C* connector leads to the 14-pin "R" plug on the ECU. The other side
of the C* connector leads to the AFM, COR, check connector and check engine light.
So it sounds like you are on the money... there must be some kind of sub-harness
that pulls all that stuff together for feeding to the ECU plug.
Cheers... jondee86
http://club4ag.com/faq_and_tech_pages/E ... 04A-GE.htm
... you should have the 14-pin "C*" wire to wire (in-line) plug.
The wires that are connected by this plug are marked on the wiring diagram
with C* in a square box with two arrowheads on one side. Above the box will
be the number of the corresponding pin in the C* connector.
One side of the C* connector leads to the 14-pin "R" plug on the ECU. The other side
of the C* connector leads to the AFM, COR, check connector and check engine light.
So it sounds like you are on the money... there must be some kind of sub-harness
that pulls all that stuff together for feeding to the ECU plug.
Cheers... jondee86
The reasonable man adapts himself to the world; the unreasonable one
persists in trying to adapt the world to himself. Therefore, all progress
depends on the unreasonable man.
persists in trying to adapt the world to himself. Therefore, all progress
depends on the unreasonable man.
Re: Mystery 4AGE Harness Not Cut--Missing ECU Plug 3?
Not sure about the USDM harness,
but on all the JDM harness I have seen the 3 ECU plug is actually part of the dash loom,
as they are the wires that go to the vehicle rather than the engine.
but on all the JDM harness I have seen the 3 ECU plug is actually part of the dash loom,
as they are the wires that go to the vehicle rather than the engine.