Yup you need a wide band or it'll be a waste of money. There are plans and kits available on line to build your own but the sensors they require are not cheap. If you are lucky some Honda Civics had the right kind of sensor and at one time at least could be found in the odd wrecking yard. Depending on where in the exhaust sytem you are placing the sensor there are heated and unheated versions. The further down line (and therefore cooler) you go the more likely you will need a heated version.
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Saskatoon, Saskatchewan
Canada
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