3892 PSB-1 Boost/Wideband Oxygen Gauge Kit

Overall the product is great, thorough instructions, nice quality components and relatively simple install given the capabilities. However, as noted in other reviews the o2 sensor tends to die very quickly, my first one lasting 1 day and the second a week. Looking into this it seems to be a problem with the gauge starting to heat the sensor as soon as it gets power meaning it is in the process of being warmed when the engine fires up, shock cooling it with the initial vaporisation of the water condensed in the exhaust and damaging the fragile internals. To fix this I installed a switch and manually turn on the gauge a split second after starting the engine, so far this sensor has lasted quite some time. Hopefully there will be a firmware update in future requiring the RPM input be connected so the gauge can wait until it sees and RPM signal to start heating.

I love it. It’s easy to use and very accurate

This is a must have for modified boosted vehicles. It’s a safety feature that is often overlooked and helps you to ensure your engine is running safely. This has some additional features that are handy to have. I put this gauge on my steering console directly in my line of sight. The reason is because in addition to the AFR reading, it also has a boost readout and a shift light. For my current car, (97 JDM Impreza WRX) I need the model with the boost controller. I’m keeping this model for our 04 WRX that already has a boost controller. These take a little time to wire up but we’ll worth the piece of mind that they provide.

I can’t say enough good about this product . I’d been looking for a while for a wide band, well I was in the process or boosting my e85 b16b motor out of a type R civic . This is a very important tool to have when boosting or going e85 all motor . This thing was super easy to set up and install, the only thing I can say is the sensor did go out on me after about a month . Not blaming them, but you can get the sensor at local parts stores. I love it tho. This thing is sick

It’s s great gauge but sort of a hassle to wire up. There is one big relay you have to wire up and it might not even be mandatory if you already have a full EBC setup. Either way I wired it up and it works great. I left out the dimming feature and it’s not very bright at night. The in and out wires for programming are a little short so wire it up then do programming then put it in place. I haven’t had a chance to put in the o2 sensor but the boost aspect works very well. Highly recommend this gauge if you only have a spot for one gauge.