idle problems on sportage

[shaunniboy]

my engine light is on and when ticking over it tries to stall for about 5 seconds then the rev counter comes bak up to tick over mode but yesterday was reving betwen 2 and 3 thousand revs on its own like i was reving it been told could be a crank sensor

any ideas

shaunny

[e_powers]

have any codes for us???

[shaunniboy]

since been told its the cat and box as its faulty its sending wrong signals to the ecu is this possible

[LMP]

Common issue with idle problem is Idle AIr COntrol valve. Easy to take out (2 screws) and clean with gas or carb cleaner.
www.geocities.com/lmp4203/kiasport/IAC.jpg