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[MutantCav]

Start the engine shove the paperclip in...should just about get enough time to get past the three 12 start of sequence codes and onto any other codes

If you have an "My Naff Code Reader" then get the engine code page up ready

[robg1984]

 Right i have a new twist in the saga!!! Ive just got her turned over(it took an age and killed the battery) and ive just got the following codes off the car after clearing it down before hand
31, 84 and 85 now the last 2 are immobiliser codes could this be because the battery ran flat? or a loose wire on injector 4?
sorry to be an absolute pain with this guys
cheers
rob

[MutantCav]

More likely to be flat battery related...31 should not come up with engine running though...could point to crank sensor issues anyway...

[robg1984]

I know its a long shot but would the crank sensor affect the spped signal to the gearbox as with the code on the box mentioning not recieveing a speed signal

[dbug]

Try running it with the MAF disconnected mate - if it runs without stalling its your MAF 

[hoofing it]

Is there any smoke coming from the exhaust when you start it and also after it has stalled when you try a re-start.

[Gaffers]

I have a theory that autobox issues and faulty crank sensors are liked, and that the former can be one of the symptoms of the latter failing.

If you have a TC the crank sensor is a little cheaper I think but it's still about 50 notes, but all of what you say does point to that being the problem 

[robg1984]

ill try that dbug and theres a small puff off whit smoke/steam when i try a restart but thats after its been turning over for a reddiculous amount of time but thats it hoofing it and its took a while to start for the past month or so even though i only changed the glows just after christmas which makes me think its the crank sensor guffer

[hoofing it]

ill try that dbug and theres a small puff off whit smoke/steam when i try a restart but thats after its been turning over for a reddiculous amount of time but thats it hoofing it and its took a while to start for the past month or so even though i only changed the glows just after christmas which makes me think its the crank sensor guffer

Thats unburnt atomised fuel thats a good start.
Now theres a black plug at the side of the fuel pump make sure this is located properly this is the throttle control plug.
The other thing that might cause this is a faulty glowplug/wiring that might be open to earth
Another thing to try is unplug the MAF and try to start it

[robg1984]

 Thanks everyone for all the help and sorry for the time its took to reply its been a busy week or so and ive only had time to spend an hour or so on the car every other night! As it stands the car is running again if a little on the lumpy side which im hoping that giving it a good boot tomorrow will sort After stripping out a fair amount off stuff like glows,wiring, the maf (anythinkg and everything really ) it looks like it was an airlock in the fuel system which must have got in when i ran out off diesel the other week  and its worked its way round. Going to give her a good run tomorrow and see how it goes from there Hopefully this is problem sorted and i can go back to tinkering on her and once again thanks for all the help