I have a 1995 Jaguar XJ6 that runs well but.

I have a 1995 jaguar xj6 that runs well but begins to idle roughly right before I come to a complete stop and as a result will occasionally die when I come to a complete stop. If I sit there for a moment it returns to normal idle, or if I put it in park it will return to normal idle. It does it hot or cold. There are no check engine lights on, all the coil wires have been replaced, and the MAF, no change.

Can you suggest other possibilities? Thanks.