Hopefully most of it is pretty straightfoward. Basically as I don’t have the rest of the car or the car loom I don’t know what is supposed to be on the other side of some of these plugs – and thats what I need to know, along with what a few of the new boxes, sensors and things do.
Injector, coil and igniter system
First of all, I take it these two yellow plugs go together as they are the only two similar ones on the loom.
next thing...the red/white and the red/black wires go straight from the yellow plug to the injectors. The black/orange wire comes from the yellow plug to the igniter, coil and blue plug and ends up at this black plug - #1.
So my questions are:
1. What is the silver box on the side of the igniter?
2. What is the blue plug for? A resistor or something of some sort?
3. Do I just run 12V IGN to the black/orange wire off the black plug to power the whole lot up [injectors, igniter and coil]? I’m guessing the silver box is a regulator type thing which “collects” the power from the black/orange wire and runs it back down to the injectors at a suitable voltage – or something along those lines.
Coldstart/STA signals
There are also two black/white wires coming from plug #1 (shown above)
They are wired up to the STA pin of the ECU and then run to the cold-start injector (on manifold) and also to the cold-start sensor (at back of head) and end up going to a black spade terminal - #2.
1.What goes to the black - white wires on plug #1? 12V IGN or an earth? and can these just be wired up together (they go to separate terminals on the plug)
2.What is the black spade terminal for? Do I need to run anything to it?
Idle up system
This little black thing has two wires coming out of it: a green/white wire and a black wire with orange dots. The green/white wire goes straight to the yellow plug - #3.
The black/orange wire also goes to plug #3, but also to the VISC pin on the ECU, then it runs down to the idle-up plug/valve thing.
1. What is the black box thing for? [just out of curiosity]
2. What do I do with the green/white wire and the black/orange wire on plug #3 - Power? Earth? Or give them the chop and forget about them altogether?
and while I’m talking about the yellow plug...
...there are also two separate wires (light green and then blue/black with orange dots) which go directly to the little black box labelled “DIAGNOSTICS”. Do I need these? Will it cause any problems if they aren’t connected to anything?
and...
...another minor issue I have is there is a green plug on the loom for the Manifold Air Temp– except on the manifold there is no sensor for the air temp – and no where for one to go!! Are these different to the bluetop manifolds and are these sensors in a different place on a redtop or what?
so I need that resistor for the redtop injectors? and it won't effect anything if I get rid of the blue plug and wires to it? lets plugs and wiring and crap the better 