my 1998 1.1 saxo has just had its mot and everything thing passed apart from emmissions, the readind says the lambda is ok but the co2 is high. checked all the sensors and they are all ok but when you start it up in the morning it is running really crap for a minute then it picks up straight away.
saxo 1.1 high co2
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#1
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#2Coolant temperature sensor try changing that.