some gas smell when cold idling

[purelux]

as soon as it warms up a bit it goes away but when first turned on and until it warms there is a gas smell comming form both rear pipes. Is this normal, and if not what could cause it?

 

[Pepsi2185]

somewhat normal, Engines run rich when they are cold. If you are really worried about it, throw a scanner on it and check the 02 codes. You may have one out.