X18XE1 Nova. Immobiliser trouble.

[deanbean]

Hello there. Just fitted an X18XE1 into my Vauxhall Nova. Wired up the pick up ring as I thought was correct, but when it fires, the immobiliser cuts in and the EML just flashes. Anyone help me on what needs to be wired up for the immobiliser to work. Cheers, deanbean.

[Paul]

Got the chip fitted in the key?

[deanbean]

Nowhere to fit the chip into a Nova key, so i've taped it to the transponder.

[Cavalier-C20LET]

tape it to the key mate, i had this prob ages ago,

if its taped to the underside of the transponder it may not be picking up the signal very well , try taping it farther up or on the key

[deanbean]

Okay, cheers mate. Will give this a try when I'm down the garage next.

[deanbean]

Taped the chip here there and everywhere. No joy. can someone please shed some light on this. She's been off the road for too long now. Cheers

[Cavalier-C20LET]

double and treble checked the wiring buddy? if ecu light is just flashing and the chip ect is all from the same car then must be wiring

[Paul]

Are you 100% sure its the correct chip for the car \ engine \ ecu?

[deanbean]

100% sure. It came out of my mates car, and it was all running.

[deanbean]

Can someone identify which coloured wires off the pick up ring need to be connected. All information is appreciated.

[BigDave1979]

What car did it all come out of?

[deanbean]

Vectra B mate. x18xe1. Small block enigne.

[BigDave1979]

From a wiring diagram, bit tricky to decode - looking at the immobiliser plug from the pin side with the locating tab on the top, pins numbered left to right:

1 - Brown/Violet - to anti-theft warning system. Assume no connection in your case. Think this is to deactivate alarm when a known key is inserted.
2 - Brown/Blue - to clocks. Presumably the EM light.
3 - No Connection
4 - Brown - to Earth
5 - Black - Ignition Live
6 - Brown White - to Diag Port
7 - Blue/Red or Blue/Black - to Brown/White at ECU
8 - No Connection
9 - Red - Battery Live

[deanbean]

Cheers for that mate, thats great. Will get down the garage today and have a go. Will update later

[deanbean]

Thanks to all you lovely Mig members, she's now alive! Thanks BigDave1979 for the info!

[andyv963]

tidy her up now and on the black stuff