Is the BOSCH Wideband A/F 02 Sensor part # 13957 the correct unit for the 85 QV (US) ? Does it work without any headaches? Thank you for your inputs. Yves
Yes, I believe Bosch USA 13957 is the correct 3-wire narrowband O2 sensor for F PN 121515 (= Bosch 0258003957) used on '84-'85 US 308QV. What is your reference for calling Bosch 13957 a wideband type O2 sensor?
Well, when I got the unit from one of the usual purveyors of fine parts, the box in which the unit came in says "Wideband A/F Sensor" and the part number stated on the box is 13957 and below that there's 0258003957009. This one is a 2 connector unit, one connector has 2 wires and the other one.
3-wires is definitely correct for 121515. I believe a "wideband" O2 sensor requires more connections, but no matter.
