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

They worked, my friend was very satisfied with them.

Excellent quality operates flawlessly, highly recommended.

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.

I bought this sensor for a 95 Riviera 3800 Series II (Naturally Aspirated) that had a P0131 (low voltage) code. When I removed my original sensor and compared it to the Bosch I saw that the Bosch only has two small slits for the air to be measured compared to eight larger slots all around the tip of the original sensor. I figured since this was listed as an upstream oxygen sensor that it may still work, but instead it caused a P0134 (no activity code) while the PO131 code went away. This sensor does not show as being active because it is not reading the air correctly due to the lack of holes in tip. I put the original oxygen sensor back in and it returned to the P0131 code status and the PO134 disappeared. This is a downstream oxygen sensor, not upstream, at least for my vehicle.

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.

How does one rate O2 sensors, I mean they either work or they don't right? Anywho these work they do all the magic chemistry stuff that California is so fond of. Literally plug and play, I don't know what else to say. I guess maybe have zipties on hand for excess cable length depending on what Chevy you're installing into.

Perfect fit..

I installed upstream Oxygen Sensor Bosch premium! It working great !