Just a bit of advice: when trying to replace the upstream O2 sensor on a Toyota, take a picture of it first... Toyota used several different variations...get the wrong one : you get a surge (running lean)...get the right one and your vehicle will run like its supposed to...the supplier sent the correct sensor for my truck....use them you won't go wrong...
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Worked great after I installed it. Check engine light went out. Make darn sure you get the right sensor for the right year of vehicle. Up and down stream sensors are different also. They are all different. This happened to be the upstream and worked great.
Verified purchase: Yes | Condition: New
My upstream O2 sensor caused the CIL to come on on my 04 Taco. I had recently replaced the downstream so I chose a non-OEM ($28) again for the upstream. The CIL went out, but the truck ram very lean after warming up. I thought that Upstream O2 sensor was bad, so I had it replaced. Same thing. It was just not compatible. I replaced it with the OEM Denso and the truck runs like new. $43 was a great price and worth it.
Verified purchase: Yes | Condition: New
Do you expect return on this item I install it and I drove the truck a little while and the check engine light is on saying the o2 sensor my friend try clear it and went back on
Verified purchase: Yes | Condition: New
After install on my truck check engine no more come on again
Verified purchase: Yes | Condition: New
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