Rumbles into life then won't idle. Ph1

[Aj76]

Car will turn over and start but it rumbles into life rather than a nice crisp start up. Then will not idle, revs just drop straight out. This has happened a couple of times recently but a quick off and on and it would be fine. I have just replaced the battery if that gives any clues. Any info or ideas would be great. Cheers

 

[Aj76]

UPDATE. throttle body cleaned, car now starts and idles nicely whilst warming up........... Once warm idle has mind of its own and tends to settle at about 2k rpm. ICV and MAP sensor will be checked but any other areas I should be looking at?? Cheers