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⚙️ Tune smarter, drive faster — the AFR controller that’s always a step ahead.
The AEM 30-0334 Afro Sensor Controller is a cutting-edge X-Series Wideband UEGO air/fuel ratio gauge featuring patented X-Digital technology for the fastest response times in its class. Compatible with OBD-II and CANbus systems on 2008 or newer vehicles, it includes a factory calibrated Bosch 4.9LSU sensor requiring no free-air calibration. Its compact 52mm gauge with slim profile supports advanced data logging and multi-cylinder control, making it a top choice for precision engine tuning and performance monitoring.
| ASIN | B07467LFHZ |
| Best Sellers Rank | #101,626 in Automotive ( See Top 100 in Automotive ) #6 in Automotive Replacement Air & Fuel Ratio Gauges |
| Brand | AEM |
| Customer Reviews | 4.6 4.6 out of 5 stars (300) |
| Date First Available | July 15, 2017 |
| Exterior | Machined |
| Item Weight | 1.33 pounds |
| Item model number | 30-0334 |
| Manufacturer | AEM |
| Manufacturer Part Number | 30-0334 |
| Model | Aem 30-0334 Afro Sensor Controller (X-Series Wideband Ugo Gauge With Obie Connectivity) 2. |
| OEM Part Number | 30-0334 |
| Product Dimensions | 5.3 x 5.3 x 5.3 inches |
A**E
Works well
A**R
Aem afr gauge
Good product.
J**Z
Quality from AEM
Install is easy if you’re mechanically inclined, plenty of cable length. 10/10
M**Y
Best option on the market- WORKS WITH DIABLO
When modifying your car to the point of needing a customer tune the AFR(air fuel ratio) is one of the most important readings you need. Not every car is equipped with wide band 02 sensors to do this correctly. In this day and age with email and remote tuning being so popular the piggy back OB2 connection is NICE. Plugging this unit into your obd2 and then plugging in your tuning/logging device allows the readings from this gauge to be captured just at is it was a factory PID. Works perfectly with HP tuners and DIablo. This is MUCH better than the old method that didnt work well.
D**E
A must for HP tuners
Pairs well with HP tuners. I used it with some diesel tuning and it worked great as well.
D**E
AEM 30-0334 Wideband with Direct OBD and definitely buy it from HIGHEND AUTOSPORTA
Talk about Customer Service these guys went above and beyond what most companies do these days. Asked him about shipping and the model. He got back to me under 5 minute. Had it shipped out the SAME DAY EVEN !!! I received the Wideband a day earlier than expected. AEM makes great products. I custom make Gauge clusters for cars. This is for my personal car. So STOKED To get it installed.
M**Y
Excellent product
I love this wideband. exceptional response time and calibration accuracy out of the box. You can free air calibrate it as it ages. Easily connects to my HP tuners by piggybacking on the OBD port and adding it as a can-bus device on your cars network. AEM has a video on how to set it up. This is a great option for folks running HP tuners standard since it doesn't require the analog inputs to log wideband data on newer vehicles. Also no need to worry about ground offset errors when using it in this manner. Its versatile though, you can also connect via older methods (0-5v analog and serial) if you have an older vehicle. It can display digital values in lambda but the analog scale around the perimeter of the gauge is only in AFR. I've marked it down 1 star because i feel its incomplete without the availability or inclusion of a lambda faceplate overlay (should be the default faceplate in this age of ethanol and blended fuels). AEM does sell a silver/white faceplate for it that they label as "AFR/LAMBDA" but they are in-fact labeled only in AFR... which of course is only a real value if you are running ethanol free gasoline. Its a small detail though because I really don't care about the scale around the perimeter, I only care about the digital number displayed in the center, and it reads correctly when set to lambda. Also it is missing the wires/pigtail from the plug that are required if you want output analog data... so you have to source the correct wire, pins and crimp tool if you want to output analog or serial data.
E**S
simplest WB by far and fastest I have owned!
I bought the 30-0334 for my 15 Silverado L83. I also run HPTuners. That being said the simplicity and ease of this OBD2 WB is like no other. Just plug and play really. Plus it’s the fastest WB I have used. Hardest part for me was getting the correct size Fuse splitter. No fault of AEM I wasn’t aware my truck has 2 different size mini fuses. The fact I didn’t have to run a bunch of wires and it has pass through OBD2 sold me. Only wish it were a little cheaper but hey.. the price you pay to be lazy! Lol
T**N
Works great
Works great, no issues after a year. would recommend buying the AEM stainless bung with it. Its worth the extra money
C**.
Salió defectuoso pero venta muy rápida la entrega. Y cellada si. Checan o me cambian nomas el.
Todo llegó en orden pero al. Aser una pruebas el carro. Mentía mucho. Debe tener un problema. El. Monitor. Porque con el del taller si trabajo bien
S**E
Great gadge
Also ordered it with another mount 👍
K**N
Had to order again first one missing parts
The first one I ordered had the "inspected" seal on the box but when I opened it there was not OBDII cable. Which is literally what makes this model (30-0334) more expensive than the others. So sent it back and after a bit of a wait the second arrived and Im happy to say all the parts are here. Just need to install my headers and I will update with the sensors actual performance.
Trustpilot
3 weeks ago
3 weeks ago