hi just changed the cats and sensors ,when cold coughs and splutters but when warmed up goes like a jet.
any body got an idea changed the cats as was running lean on one bank and rich on the other.
could it be the maf sensor that gone.

many thanks

Guiness.

I had a similar problem on my Disco 1 3.9, I had also changed to cats. Try disconnecting the ECU for half an hour, this will force it into it's default mode and remove the previouse data it is running on. Whilst mine is not perfect now (I think I need to look at the MAS) at least it does not stall at Rd juctions anymore when cold.

Good luck

Mike