cut out when cold, and erratic idle when hot (1000 to 3000 rpm). I have sealed all air leaks and smoke tested to prove it.Parts replaced by other garages are idle speed solenoid, lambda sensor,temp sender, plugs (genuine renault).I have replaced map sensor and throttle body seals. (the map sensor was showing no response at all)The scope readings for the TPS are ok but the idle control (4 wire type) seems to drop out intermittentley on one channel (i presume two wires are to increase idle and the other are to decrease)Any suggestions to fix this fault would be gratefully recieved