help needed x18xev imobilizer wiring problem

[daveybuc]

any help gratefull received i am stuck wiring a vectra 1998 vectra 18xev up in a nova.i cant find any diagrams on autodata.i have the immobilizer connector in front of me no pins are as follows
1 brown / purple
2 brown / blue
3 unused
4 brown/white
5 black switched +
6 red/blue immobiliser signal
7 blue/black
8 brown/white
9 red 12v

http://i22.photobucket.com/albums/b3...c/DSC00018.jpg

i have the black to switched live,the red to constant 12v,and the blue/ red to ecu directly onto the x7 plug(pin 10 blue/black)i have traced through to ecu pin 5 immobiliser.the fuel pump is wired.The engine harness has a big fused live which is to battery for now the earth is connected ive got no spark.i have all the matching immobilzer bits.is there anything else need conecting to get this lump to run

http://i22.photobucket.com/albums/b3...c/DSC00019.jpg
the x7 i have following pins
1 red/blue
2 black
3 brown/white
4 brown/yellow
5 brown/blue
6 grey
7 unused
8 red/blue (thick)
9 unused
10 blue/black
11 blue
12 unused
13 green
14 unused
15 black/blue
16 brown/viloted
17 black
18 unused
19 unused
20 black
21 black/white
22 brown/blue
23 red/blue
24 black/red
i can find a pinout for the v6 but not 1.8 hope some one can help i have no spark,hope someone can help dave

[Kieran]

Only wires you need to worry about are:

Red > 12v
black > ignition live
brown > earth
brown/blue > brown/blue - ECU light
blue/red nearest to the red 12v wire goes to the blue/red in the ECU loom plug
other blue/red goes to the speed sender on the gearbox.

And that's it.

[Kieran]

Actually, just realised it's a Vectra loom you have. Immobiliser wire in the big ECU plug is blue/black on the Vectra.

In your X7:

Pin 1 red/blue >fuel pump
Pin 2 black > ignition live
Pin 5 brown/blue > ECU light
Pin 10 blue/black > immobiliser
Pin 11 blue > coolant gauge
Pin 13 green > rev counter
Pin 22 brown/grey > secondary air injection relay.

They're all the ones you need.

On the Vectras, the brown secondary air injection relay is a part of the car loom, so you'll have to cut the brown relay plug out of the fusebox by passenger side suspension turret and wire it into the Nova loom. I had to do this on a Nova I put a Vectra 1.6 XEL engine into. As far as I can remember, it was only a 12v and ignition live connection on the relay and then join the brown/grey to the brown/grey in the X7 plug. If you don't wire it in, the engine will run fine, but you'll be left with the ECU light blaring at you all the time.

[daveybuc]

hi thanks i only have1 blue/red in the immobiliser andnow i am beggining to think its a speed sensor and the blue/black is my immob signal.just noticed you edited lol disregard what i just said lol,

[Kieran]

No worries lol. Make sure your immobiliser chip is sitting in the middle of the transponder ring when you go to start it. If you stick it on the outside edge of the casing, it can be hit and miss as to whether the transponder picks up the chip signal or not. Sometimes it'll start fine, others the ECU light will just start flashing at you and nothing.

[daveybuc]

just been out neigbours not happy lol, still no go you wouldnt happen to no if the pin 7 blue/black on the immobilizer plug is the signal wire and not pin 6 red/blue mate would you my heads battered now.

[Kieran]

Yeah the blue/black is the immobiliser signal wire. The blue/red goes to the speed sender on the gearbox

[Mark T]

Transponder Blue connector

Pin  	Colour  	Function
1 	Brown/Red 	Alarm Input (Optional)
2 	Brown/Blue 	Engine Management Light (Optional)
4 	Brown 	Ground
5 	Black 	Ignition
6 	Blue/Red 	Speed signal from ABS/clocks (Optional on V6)
7 	Blue/Red 	Speed signal to Engine ECU (Transponder signal)
8 	Brown/White 	Diagnostic (Optional)
9 	Red 	12V

[daveybuc]

thanks mark but mines different doesnt have the x2 blu/red it has blue/black in pin 7 and blue red in pin 6 i am now assuming pin 7 is immob and 6 is speed signal,does speed signal need to be connected for car to run,thanks again dave