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Review on Denso 234 4524 Oxygen Sensor Ratio by Michael Vargas

Revainrating 5 out of 5

Easiest work on Scion xB

Easiest o2 setup I've ever done. The hardest part was unplugging it, it's not difficult. The original O2 sensor with Toyota stamp came from '06 with 190,000 miles on it. I don't expect it to last that long but it's cheaper than Autozone and easy labor. The downstream hasn't been changed, the cables are hidden, so see if you're going to do that first.

Pros
  • Free for educational purposes
Cons
  • Minor issues