Hey everyone, i just bought this car that has an alarm and an immobiliser that is hooked right into the existing door system.

It only has a trigger for the bonnet.

Its got a black siren under the bonnet with a key in the back, i have keys to it and i can turn it on and off.

Today i took out the spark plugs, washed them and regapped them, put them back in, now the immobiliser seems to have kicked in, nothing happens when i turn the key, nothing even lights up, the headlights dont even turn on (with the alarm on or off).

Now i have tried turning it off, then back on, then off again, all with the bonnet closed, ignition off and on and still nothing, i cant get the bugger to start..

Does anyone have any ideas, maybe it would help if i could get apicture of the unit.

I'd be happy to just remove it, stupid thing..
Maybe RAVC can come and get it working for me, i am a paid member so

Thanks in advance everyone
Matt

The battery's not flat or the terminals arent all corroded?

No the battery is fine and the terminals should not be a problem.
Thanks
Matt

IS there any power going to the alarm though? Coule a loose wire or blown fuse? Mine did the same when installing it...

If the headlights are not working, i really dont think it is a problem with the alarm / immob.

Yeah thanks, i checked the fuses and the main one looked a bit on the bad side, replaced it and we are sweet
Matt

i had a similar problem.
happened to me twice in 3 days.

my remote was faulty and it wasn't turning the imobilisor on/off properly.

i locked/reopened the car with the key instead of the remote and got it working.

later on i found out the the main wiring in the engine was faulty.
had that replaced for around $70 at auto electrician.
and hasn't happened since.