Nothing happens when you turn the key.

[spbt1]

So recently i have had a problem with the immobiliser cutting power to the fuel pump randomly which i have now cured.

The other problem i'm having is that every now and then and i mean very rarely when i turn the key to crank the engine nothing happens at all i just get ignition lights and thats it, leave it for 5 and try again and it fires over,

Anybody suffered this before or are we thinking it could be another alarm fault.

Thanks in advance

[Grrrmachine]

Again sounds like someone's tampered with the wiring. This time you're looking for a black/yellow wire from the ignition key to the starter motor. Have a read:

http://www.e30zone.net/e30zonewiki/inde ... Plug_Start

[Billwill]

Probably another alarm fault.

Most of these immobilisors cut power to the fuel pump, the injectors and maybe spark and usually stop the starter motor energizing.

I had all these problems at random so pulled the alarm unit out!

[spbt1]

i am all willing to pull the alarm out but don't want to upset anything in the process,