BOSCH 15703 Premium OE Fitment Oxygen Sensor - Compatible with Select 1993-03 Acura, Buick, Cadillac, Chevrolet, GMC, Honda, Isuzu, Oldsmobile, Pontiac

Works like it should.

If you own one of the many vehicles these 02 sensors were used on, this is the one to buy. Bosch invented the technology. There's a good chance the OEM sensor you're replacing is also a Bosch so save yourself the dealer markup and buy this one. Works great, fits like original.

Great quality and price. Would highly recommend 😁

Plug 'n Play ready on my 99 Isuzu Rodeo. I'm not certain if they work, but the Check Engine light on my car went off. Actually, I'm not really concerned about the environment, the ozone hole, global warming, polar bears, and every other worry of the leftist tree huggers. I just wanted the F(*&!#(*%G Check Engine light to go off. Anything that furthers that objective gets 5 stars from me. BTW, the old sensors are not easily removed from their comfortable sockets on the exhaust pipes. You're gonna need a big breaker bar, cause those suckers are in there. The new sensors come with anti-seize compound, so you're all set with that. Bottom line, these little gems will work their magic and get your car running great. They're half the price here compared to the local auto parts store.

I put the new o2 sensors in my 1998 kbody and start it up with my diagnostic tool plugged in the obdII port and the two new sensors are stuck at .450 volts giving me a check engine light and wasting my money

Perfect fit. Fixed the problem. Works great

It's a simple process of efficient monitoring of resource.This sensor measures the efficiency of the entire engine through the comparative measurement of the oxygen content of waste products within the engine exhaust.The ECU uses upstream and downstream sensors outputs in comparison to this sensor's reference output.All that data is compared to a matrix that determines where the engine should be operating in relation to imaginary optimum fuel and oxygen ratios.Just like a spring loaded carburetor butterfly flap.Oh well.Change oxygen sensors every once in a while.

I purchased a Delphi FJ10565 CSEFI to MFI fuel injector conversion kit and a set of four Bosch 15703 Oxygen Sensors at Amazon for my 1996 S-10 Blazer. They had these products available and at very affordable prices. After replacing the fuel injectors and noticing a marked improvement, I then proceeded to replace the four oxygen sensors. I did not have any problems with the units near the catalytic converters as they were very accessible and they only required some penetrating oil and the special socket to remove and replace. Make sure you warm up your vehicle for a couple of minutes to facilitate the removal of the old O2 sensors. The units near the exhaust manifold are much more cramped to access, requiring 'crow-foot' removers to replace. The right bank sensor was difficult to remove but the left bank required me to take it to a muffler shop as it had nearly welded itself onto the exhaust tube. Thirty-five dollars later and a new tap/retread job, I had all new four O2 sensors on. The level of smoothness is highly noticeable. I thought that the fuel injector replacement had made a sizable difference, but when I added the replacement of the O2 sensors, the difference was remarkable. Without ignoring that my vehicle has now 178K miles, the level of smoothness and performance is outstanding. I will be checking the MPG as I was getting an average of 13 MPG; regardless, the Blazer is, once again, reliable to drive.