MAZDA 3 TS DIESEL
getting serious now as the car stalls at traffic lights when i .stop.

also will not fire up intermittenly when engine is hot.....

revs drop intermittently,

WHAT IS CAUSING THIS ?

car was serviced one month ago and problems happened after service......

mechanics struggling to diagnose......

is it .................

A the air flow meter/sensor

b idle control sensor

c the ECU

AAAAARGHHHHHHHHHHHHHHHHHHHHH help please ( wife is making me carry the shopping everywhere)