Wideband UEGO Air/Fuel Ratio Gauge 52mm (2-1/16”) with 4.9 LSU Sensor, Digital AFR Controller Gauge, Wideband O2 Control Sensor kit | 0-5V Analog Output (10-20 AFR Range)

Installed this wideband over a month ago and still no issues. Wiring is easy. You MUST ground it to the chassis. If not, it will not work properly.Edit: My sensor failed like stated in other reviews. Just ordered a Bosch sensor. The gauge works fine so I'm still happy with the product.

Hooked up the gauge for the first time today. Had sensor hooked up before adding power and ground. Gauge came alive at 14.7 and then climbed to full lean. Which seems correct since the engine wasn’t running. I started the engine and nothing. I tried more throttle and not a blip of change. I verified good power and ground. If the company can reach out to me about warranty for the sensor atleast, I’d appreciate it before I return the whole setup. Or if they have any in-depth T/S.I was hopeful and and thought I’d get lucky with a good setup, but it seems the reviews are accurate and the sensor is junk

This controller worked great last summer, but is now dead. The screen is blank. I verified power and ground and tried disconnecting and reinstalling it after waiting a few minutes with no change. I see the seller offers a 24 month warranty, but even though I still have the manual, I can't find any contact info.I would definitely raise my rating if the seller sees this and honors the warranty.Update: The seller sent me a message wishing to honor the warranty with a replacement within 1 day of this post.

If you read the reviews you know that this gauge comes with a garbage o2 sensor. But it doesn’t matter because it’s still the cheapest way to get a reliable system. Just don’t use the included sensor if you can’t meet the requirements for it to function. They state clearly in the directions that it must be a certain distance downstream and never exceed a relatively low temperature and only be exposed to a somewhat narrow A/F ratio or it will ruin it. Normal o2 sensors are usually mounted far closer to the motor and drastically exceed the rated temp. So basically, toss the included sensor and purchase a new Bosch o2 sensor part number 17212. It’s the cheapest wide band they make at 59.99, and is available at most reputable places. Then just install it in the original port in your exhaust and bam! Perfectly accurate and reliable system for a fraction of the name brand stuff. Gauge works great, which is not surprising since it is a simple electronic system that only shows the output voltage from the sensor via readout/indicator lights on the gauge face.Would be great if it were even cheaper by being available without the junk sensor.Also! I’ve been running this kit with the Bosch 17212 for a while now with no problems at all.

Never failed on me.

The sensor itself quit working after less than an hour, company sent me an entirely new kit.

Worked great for a month, then the gauge stopped working, still reads in tuning software the gauge tho is just all lights on with no reading. Can't find a way to contact seller for warranty will update based on that.*edit: tested sensor its fine the controller unit stopped working. Still waiting on a message back from seller

Been working spot on for over a year no issues. Only think I can say compared to the authentic AEM gauge is that this one responds just a little slower but is still accurate.