c20xe over fueling problem

[jasonpoole098]

i have a corsa c20xe an its just satrted over fueling wen am driving it at 30 40 mph it statrs to splutter after a few miles so if i rev it hard an the give it abit it sorts its self out then wen i stop at lights it smells off fuel very bad, any help.thanks

[let_nova]

lambda? cts?

[jasonpoole098]

no lamber its a an early redtop engine

[let_nova]

cts, afm, poor plugs

when was it last serviced?

[jasonpoole098]

afm is fine just had plugs an leads an new oil.dont mean to sound daft but wot is cts thanks

[let_nova]

coolant temp sensor, located beside the thermostat, blue plug

[jasonpoole098]

thanks m8 i will have a look 2moz an see how i get on