V8 cut out now wont start, Started once and missfired cut out again

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So the cat has been cooked I believe failed emissions and brakes are ****e. So need new brakes all round and new cats I assume to get emissions down.

So does it run now without cutting out?

Brake may want fettling and bleeding out properly
 
So the cat has been cooked I believe failed emissions and brakes are ****e. So need new brakes all round and new cats I assume to get emissions down.

Yeah slight popping so I'm guessing timing and new cats should do the trick. according to google 3.9 v8I disco 1's don't exist

You said that one bank wasn't firing due to dodgy leads, this will foul lambda sensor on cat vehicles- what readings did you get on co2
 
You said that one bank wasn't firing due to dodgy leads, this will foul lambda sensor on cat vehicles- what readings did you get on co2
:-(
 

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Oil at 71 degrees c, would check the ecu coolant sensor as the reading is hi on co2 and if sensor telling lies saying it is cold it will over fuel-will need a multimeter
 
Yeah, high CO means rich mixture whereas high HC means bad cat and/or misfire.

Check your injection tuning etc and see what's what, if you have passed HCs I don't think you have failed cats necessarily.
 
Yeah, high CO means rich mixture whereas high HC means bad cat and/or misfire.

Check your injection tuning etc and see what's what, if you have passed HCs I don't think you have failed cats necessarily.

I'm assuming a screwdriver to the black plastic container on the back followed by a lit match will solve the Co issue? I can't even find any parts to start swapping over
 
Looking at the history, think Mr. Noisy's diagnose sounds the best option to start trouble shooting.

Never jump to conclusions, it is too costly.
 
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