Hi folks, hope someone can help me here am stuck
She's a 1.6 zetec se 52 plate 138000 miles
No engine management ligh on or stored codes

Here's what's happening
Start car as normal form cold idles as it should sounds as it should when you rev engine,
The problem starts when she starts to get warm (choke off) the idle become's very rough like a miss fire if I rev her up sound and runs as it should till you release the throttle and then it just cutts out no idle what's so ever, don't know what els to do plz help

We have changed
The throttle body
The manifold ( all of it )
Maf
Injectors and and all the wiring
Coil pack leads and plugs
Camshaft position sensor
Lamda

 

What about the idle control valve?