🔥 Heated Oxygen Sensor for GM Original Equipment: Buick Cadillac Chevrolet GMC Hummer Oldsmobile Pontiac (Replaces 234-4229) Review

He senses O2. The price was good compared to others. Removed the SES code. Works for 4 months, so if he doesn't die soon he gets a "5".

This sensor looks good quality and is easy to install, but it kept calling the Check Engine Indicator code and the engine ran rich. Replaced by Bosch O2 sensor = no more codes, engine runs noticeably smoother.

Product does not have the same approvals as Factory/Denso. The truck kept getting fatter because the track gauge didn't fluctuate as it got leaner. I installed new catalytic converters before buying, so now I have to buy a new kit from denso/acdelco to replace them.

The price is right. After looking at the reviews, people ask questions upstream or downstream. When I bought them they said they were compatible with both. I installed them very carefully, my check engine light is off but the codes are still pending as I am waiting for the ECM to complete the circuit. For now I'll say they aren't ready, as are a few other valving/solinoids.

Total rubbish and waste of time. I've spent endless amounts of time researching and working on this topic. Codes P0054 and P0060 are also output. I almost refused to accept that two (2) O2 sensors could be bad. I checked the sensors, everything seems fine. I traced the wiring hoping to find a bad ground, but I didn't. I finally gave in and spent $80 on two (2) OEM O2 sensors. My problem magically disappeared!

Perfect fit Just installed looks like a quality sensor Update: Have gone through 3 of these sensors. I checked the resistance of the sensors and compared it to the specs. Only 1 sensor had the correct heater resistance, the other 2 had 1/2 the specified resistance. Installed the sensor with the correct resistor and it failed after 2 weeks. Didn't even try to get a refund although customer service was good when getting a replacement. Spend money and get ac delco.