Ive just bought a Fiesta Turbo, and its running rough, it holds back before boosting and splutters. Ive changed the plugs and leads but still no change.
Anyone got any ideas????

 

Were the plugs black and sooty when you took them out ?
tabetha

 

yes mate, do you know what could be wrong?

 

I would be looking first at the CTS as a suspect, this is used to determine the fuel mix at all temperatures and sets the vast amount of the fuelling level, though there are trims, ie TPS MAP/MAF etc the vast majority is based on hte reading from CTS, and this is the main corrective factor for CO
tabetha

 

sorry to sound dim, but whats the CTS

 

its ok i know what it is now but where iabout is it?

Cheers mate

 

Has it been chipped, mine had a superchips and the chip would slowly come out of the ecu (even when taped in) when you pushed it back in it was fine !

 

nah mate completly standard.

anyone know where this cts sensor is then?