idle when cold

[schakal]

i have a strange problem on the f7p recently .
started from cold the idle seems to struggle for the first 5 minutes
untill the engine is warmish .
it goes down to 500-600 rpm for a few seconds and shoot
back up to normal (900-1000 )
after running for 5 minutes its all fine :?

map sensor , icv , lambda sensor , cts ?? which one is it ? :P

[MAXIBOY]

iscv needs cleaning...first... 8)

[drsmith1979]

as suggested clean the iscv as its free.... my money would be on the coolant temp sensor, the white plug near to the dizzy... a good way to tell is to unplug it, try to start it and see how it runs, if it is no different to being plugged in then it would suggest it isn't working properly. If there is a drop in performance, i.e. it idles worse, then you know it is working...

next culprit would be the O2 sensor.... but check the first two...