Ok. Then this must be an after market immobilisor. Replacing the fuel pump fixed the problem with immobilisor, to the immobilisor was definitly associated with the fuel pump as well as the ingition. Car runs great, but you can really hear that fuel pump working in/outside of the car :P Will not havi...

Make sure the fuel pcv (attached to fuel rail) is connected up also to intake hose. Is fuel pump working aok? I know after my engine rebuilt the fuel pump failed (not sure why); also check fuse. Another thing to try is fault codes using your diagnosis unit (if the car has one). Just recently, this s...

I found the fuel pump to be faulty. It would start only when I gave it a few knocks, but no chance without the help. I wonder if a faulty fuel pump could be blowing that glass fuse to immobilisor (the fuel pump fuse in fuse box remains unharmed). I bought one for $140 today, apparently same one they...

Very nice write-up. I'm sure this will come in handy for countless 850 drivers. Thanks. :D Hi. Indeed handy, I have used this today. Any Idea why i cannot see my previous comment on this thread?; also cannot see the new thread I created "Fuel pump and immobilisor issue". I am new to this ...

Hello Firstly I should mention that recently me and my dad have rebuild the engine (new ring, gaskets, valve stem seals and cylinder head machined). After a few day of timing the cams, we encountered an issue with the immobilisor. There is a glass fuse between the immobilisor and a cable leading to ...

Very nice write-up. I'm sure this will come in handy for countless 850 drivers. Thanks. :D Indeed. I have used it today, however I was unable to find the codes under A7 (Combined instruments) that I recieved in the diagnosis unit. These codes are 1-3-2 & 2-2-1. I will post a new thread named &q...