You can control this feature because it comes with a separate gain control function and is programmable. So, with this tool, you won’t really miss out on anything. Although the LED doesn’t show any numerical markings, it’s easy to read and very accurate. On the same note, it displays various AFR levels ranging between 7.35: 1 and 22.4:1 AFR.

On the other hand, the tool also ensures faster analog output. As a result, the ECU in your air/fuel ratio will change as they happen, and that will give you updated information at all times, without any hassle whatsoever. Of course, throughout your ride, the values will change every now and then. To make reading it easier for you, the tool includes smooth pointer movements. Hence, you can view the readings easily. Second of all, different vehicles tend to use different types of fuel. For instance, some cars only function with gasoline, whereas others are open to different types of fuel. Hence, do not neglect this detail. Durability of the toolIndependently tested at 360° Product Testing (results reported on August 31st, 2015) against 17 competitors wideband UEGO Air/Fuel Controllers. AEM X-Series Inline with 4.9LSU wideband sensor and AEM X-Series Wideband UEGO AFR Gauge with 4.9LSU sensor recorded the fastest response times. No. There is a laser-etched, calibrated resistor in the sensor’s connector body. This resistor is specifically created for the exact sensor that it is attached to. Modifying this will invalidate the sensor’s output. Not to forget that it includes a color recall functionality as well. Therefore, you don’t have to adjust it to your favorite color each time you start the car.

Speaking of added benefits, the product comes with enhanced heater control. This facility is useful because it provides superior sensor performance, high-performance applications, and forced induction as well. Most stand-alone narrow-band meters have 10 LEDs and some have more. Also common, narrow band meters in round housings with the standard mounting 2 + 1⁄ 16 and 2 + 5⁄ 8in) diameters, as other types of car 'gauges'. These usually have 10 or 20 LEDs. Analogue 'needle' style gauges are also available. Gauges that can measure a wide range of pressure levels are certainly more advantageous than their other counterparts. Fuel economy: An air–fuel mixture leaner than the stoichiometric ratio will result in near-optimal fuel mileage, costing less per distance traveled and producing the least amount of CO 2 emissions. However, from the factory, cars are designed to operate at the stoichiometric ratio (rather than as lean as possible while remaining drivable) to maximize the efficiency and life of the catalytic converter. While it may be possible to run smoothly at mixtures leaner than the stoichiometric ratio, manufacturers must focus on emissions and especially catalytic converter life (which must now be 160,000km (100,000mi) on new vehicles [ citation needed]) as a higher priority due to U.S. EPA regulations. But, if the product offers more than that, then wouldn’t that be a bonus? To more about such bonuses, go through this review of one of the best air fuel ratio gauges.

Bottom line, wideband units are the preferred type of AFR gauge. More notably, the best AFR gauges out there are usually within this category. Accuracy & response time The solution to this problem is getting a wideband gauge, however, still, make sure the voltage offered from the vehicle is within the range of the gauge. Are you looking for a gauge that would be easy to install and will provide good value for money? In that case, here’s a product that you should not miss out on. Any Air-to-Fuel Ratio less than 14.7:1 is considered an AFR-rich mixture. On the contrary, any mixture that is greater than this AFR number is lean. #4. Is it better to run lean or rich AFR?? One disadvantage of the color-coded dials is that you might have a hard time viewing it in low light.