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Title: S4 Tuning Wiki "Wideband Sensor" Post by: CowardVenus15 on February 03, 2020, 08:34:34 AM I am VERY new to tuning and I am trying to understand the requirements. The S4 Tuning Wiki states in the fueling section: "Always use a wideband sensor. Do not skimp on this."
What does this mean? Do I need to buy new hardware? Title: Re: S4 Tuning Wiki "Wideband Sensor" Post by: nyet on February 03, 2020, 09:15:52 AM yes, it means a 3rd party wideband sensor, either a tailpipe sniffer or an extra bung on one of your downpipes or exh.
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