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

Along with changing BOSCH 13111 they managed to get rid of codes P0420 and P0430. But it did take almost a week for the codes to finally stop popping up.

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

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.

really liked the low price and the quality of the sensor saved me a bundle got all 4 at the same time would recomend this to anyone needing this part number and this vendor was delivered in a timely manner and exactly what i ordered

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.

Oem

They work .

Worked as it should

installed in a 4.4ltr forklift worked great

Better quality than the equivalent ac/Delco sensor offered on amazon because the ground tab can be easily broken off upon installation on the ac/delco version rendering it useless

1/3 price from my local parts, Lordco in BC.

Works on 97 c1500 5.0 No issues