Bosch 15200 Premium OE Fitment Oxygen Sensor - Compatible with Select Cadillac Escalade, ESV, EXT; Chevrolet Avalanche, Silverado, Suburban, Tahoe; GMC Sierra, Yukon, Yukon XL

For those wondering, this sensor will work flawlessly with the Holley Terminator ECU

excellent quality and price OEM fit

I bought a budget wideband with the budget sensor knowing I only needed the gauge. The cheap sensor was slow to respond. This one is much faster and I believe probably more accurate as well.

My'05 Nissan Altima had the CEL on for quite a while. The error code was P420 which is a common code for that generation of Altima. Unfortunately that code is very vague. It could be anything between a vacuum leak, bad O2 sensor, or a bad catalytic converter. Based on the fact that I have 130k miles on the car, I went after the oxygen sensor first, being that it is relatively inexpensive and an easy fix.After 6 weeks and 1k plus miles, the CEL light isn't on anymore. I've noticed a slight improvement of fuel mileage too, maybe 1-2 mpg.Based on the research I did online, most shops will try to get you to replace the catalytic converter first. That is an expensive fix. I would recommend fixing the O2 sensor first. The Bosch model was well made, and probably a bit better quality than you would get from a discount parts store.

I figured shoot why not just a few bucks more for the brand name ones figured they would be much better but I Will not buy again will go back to the off brand I am used to as one of these brand name one’s installed and started the truck ran great till it went into closed loop and started using the o2 for fueling and truck set a check engine light calling for +40%fuel needed and started back firing after hooking up my scan tool and noticed bank 1 sensor 1 was very slow reacting and that bank 2 sensor 1 was maxing out causing long term fuel trim maxed out as well as short terms caused mas over fueling and back firing. Again will not buy again.

I did a search on Amazon for a replacement oxygen sensor for my 1999 Volvo V70. I used the compatibility checker on Amazon to check the first one I found and it said that it was compatible so I ordered it. Since it was time for my regular service I gave it to my mechanic to install at the same time. He phoned me during the servicing to tell me that it was the wrong sensor. When I picked up the car there was a $42.50 charge for uninstalling the old sensor and for reinstalling it.I contacted the vendor who told me it wasn't his fault since he had no control over Amazon's compatibility checker. Long story short, the vendor took the sensor back and gave me a refund. Amazon gave me a credit for the service charge and I ordered this sensor.When it arrived I decided to install it myself. I borrowed my son's auto ramps so I could get the car high enough to crawl under. I put the car on the ramps in the garage one evening so it would be cool by the next morning. I did not have the sensor removal tool but thought I would try to remove it using an adjustable wrench. I put a work light under the car and scooted under just behind the left front wheel (driver's side). The sensor is located just in front of the catalytic converter. Although I couldn't get the wrench squarely on the sensor I was able to get a decent grip on it and gave the wrench a hard push. The sensor moved and came out easily. It may have helped that my mechanic had taken it out recently.The wire cable from the sensor runs through a little plastic fastener that may be popped out if you are careful but if you break it, a wire tie works fine. The electrical connector is easily reachable from above. It took me a while to figure out how to disconnect it but finally discovered a small slot into which I inserted a very small screwdriver and the connector popped open. Insert the screwdriver parallel to the wire cable at the top end of the connector.It is a good idea to screw the new sensor in before you connect the wire cable. Otherwise it will get very twisted. Make sure you use the fastener or wire tie to keep the wire cable away from hot surfaces.When I started the engine the "Check Engine" light came back on so I thought I would have to have it reset. I wasn't able to do that right away but after a few starts and driving 20-30 miles it went off. Before I replaced the sensor I was getting about 10 mpg but now it is back to the regular 25-30 mpg.

Got rid of codes.

Bought as a bank 1, o2 sensor 2 replacement. Fits as it should. One thing though, the bung on the exhaust is pointed straight up, so it would make sense that the o2 sensor would not have the wiring run straight out the back as it just runs into the floor above the exhaust. But is does fit, albeit just barely, and does its job.