Hi,
Any advice appreciated. My wifes punto 75 sx has been over-revving whilst in neutral. mechanic pal took a look and said new idle air control valve stepper motor needed. Managed to buy one on ebay, but the diameter head is smaller than the original part. Seller is asking for a photo of the original stepper motor, but unable to take apart as the mechanic has fixed temp, by allowing a small air inlet?? Are there more than one size valves for punto 75s??
My part number is B18/00A2047, but seller says he sent the B18 group?.


Where else can I get one from without going to fiat??
Thanks