Ford Focus high rev then low revs then stalling stalling

Car: Ford Focus
Variant: 1.8 zetec
Model Year: 1999
Categories: Running Rough, Starting & Power Loss
when i approach any stop (traffic lights etc) and start to brake the rev counter has high rev and then when idle the revs drop and the car stalls.
After needing a new middle box and rear silencer i had Ford run a dianostics test and that showed nothing is wrong, i have changed the air filter and used some redex, the fault is still their what could be wrong?
Posted: Apr 20, 2009 (15 years ago)
idle speed control valve , clutch switch, mass air flow or speed sensor
Posted Apr 20, 2009 (15 years ago)
Thanks

how would i go about getting them tested or is it cheaper/easier to just replace the lot?
Posted Apr 20, 2009 (15 years ago)
where are you located
Posted Apr 20, 2009 (15 years ago)
07902004967 give me a call tommorow about 9 30
Posted Apr 20, 2009 (15 years ago)
i live in gloucester
Posted Apr 20, 2009 (15 years ago)

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