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Immobiliser (spider)

Posted: Sun Jun 17, 2012 5:38 pm
by Kel
Hi Guys,

I have recently bought a 95 disco 3.9 auto running petrol/gas.

Recently the car just cut out on me whilst running on gas. I restarted the car on petrol and appeared to run ok. It happened again yesterday, but this time it wouldnt run on petrol either. I then had trouble restarting the car..... would crank over but wouldnt fire. Once I did get it running, it would only run for a very short period of time and cut out again......like it wasnt getting fuel. This would happen on both petrol and gas.

Oddly enough, while looking through the car today, I found a spare part in the rear of the car, unopened with a part number of AMR 4956, I found out it is the bypass wiring for the "spider unit" which is part of the immobiliser system. I am still not 100% sure this is causing the cutting out problem, but it seems to be pointing in that direction.

Is it possible to bypass this system for testing/diagnosis before I pull the dash apart to get to the "spider"??

All help appreciated

Kel