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Title: Running rich Post by: Wangler on 15 February, 2022, 02:17:18 PM My S3 1.3 Coupe engine runs very well, but judging from the plugs (NGK BP7ES) I think it may be running a little rich. Is there a way of adjusting the fuel/air ratio or is it a case of getting smaller jets? Before anyone asks, the air filter is good!
I use 99 octane zero ethanol with Castrol Valvemaster If smaller jets are the way forward, does anyone have a recommendation please. Title: Re: Running rich Post by: lancialulu on 15 February, 2022, 02:25:50 PM No to smaller jets!! (Unless they are not standard in the first place). The best way to get a better feel for correct running is to go for a fast run and stop the and pull the plugs. NGK BP7ES are good for Fulvia. Most Fulvias show a sooty plug when idling for a while.
Title: Re: Running rich Post by: Wangler on 15 February, 2022, 02:34:39 PM They're NGK BP7ES - pretty new.
Yes, I've certainly found that they carbon up bit if it's idling and in the winter it doesn't get the chance for a bit of a blast. Getting the engine to normal temperature in the garage as I do a few times over the winter isn't going to do it. I'll do as you say when there's a nice day. Many thanks R Title: Re: Running rich Post by: dhla40 on 16 February, 2022, 08:55:04 AM During the winter when just doing local trips I use BP6ES plugs which are more resistant to fouling, in the summer for motorway use BP7ES are ok.
Sean |