2-1/16" WIDEBAND PRO AIR/FUEL RATIO, 6:1-20:1 AFR, C2
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- Size:2-1/16" (52.4mm)
- Range:6:1-20:1 AFR
- Lighting:Digital LED
- Instructions: Download PDF
Knowing the exact air/fuel mixture running through your engine is the most important factor to extracting the highest levels of performance and durability. Not all wideband gauges are created equal. AutoMeter utilizes an advanced calibration method that automatically calibrates your gauge on every startup to assure you of the highest degree of accuracy over the entire lifespan of your sensor (no free air calibration is ever necessary). Compatible with nearly all fuel types, the AutoMeter Pro Wideband has a configurable display to pinpoint the exact range you want to keep an eye on. An advanced peak recall function and lean warning system make sure you’re safely making power, whether on the track or on the street. An automatically dimming display tailors light output for any condition. Data logging output is included for one wire or two wire systems in both lambda or AFR. Our specially designed O2 sensor and wiring harness are included for ease of installation. Quite simply, there isn’t a more accurate or easy to live with wideband gauge available on the market.
- Gauge kit includes custom tuned .1 AFR Resolution Bosch LSU4.2 Sensor, 8ft. wiring harness, 304 stainless steel weld-in bung, mounting hardware, and detailed instructions for installation
- 0-4v data output feed for ECU, data acquisition unit, or Laptop tuning
- User programmable range for Rich/Stoic/Lean conditions
- Peak recall/memory
- 10:1 to 20:1 AFR range for gasoline applications
- 12 and 16 volt compatible, compatible with nearly every street car or race car electrical system
- User Programmable Warning Function
- Display data in Lambda or numerical A/F ratio
- M18X1.5 Fitting and Plug
Rated 1 out of 5 by Charles Kitterman from Very disappointed with this Autometer product! Purchased a set of Autometer C2 Gauges for my Supercharged 2009 Dodge Challenger a few years back and have less than 7000 miles on them (2-1/16" WIDEBAND PRO AIR/FUEL RATIO, 6:1-20:1 AFR, C2, BOOST/VACUUM 30 IN HG/30 PSI C2, & FUEL PRESSURE 0-100 PSI STEPPER MOTOR C2). they are beautiful looking gauges both in day light and at night. However a portion of the display numbers on Wideband Pro Air/Fuel Patio gauge no longer lights up. I believe a $349.99 gauge should be more reliable, so I cannot recommend this product!
Date published: 2021-06-06
HELLO. ONE OF THE MICRO TERMINALS IN THE PIGTAIL THAT PLUGS INTO THE REAR OF THE GAUGE HAS BROKEN. I CANNOT FIND A PART NUMBER FOR THE TERMINALS TO PERFORM A REPAIR. CAN YOU PROVIDE THE P/N FOR THE 10-WAY CONNECTOR? THANK YOU.
Thank you for your question. Please call our tech line at 866-248-6356 or shoot us an email. https://www.autometer.com/contacts/
Date published: 2021-02-04
Hi, digital display on my phantom 2 1/16" air/fuel ratio gauge has some led burnt out (not showing complete readout). i was told that this is fixable if shipped back and serviced?
Hi Valentin, You may certainly send that gauge for service. Please send it using the attached form: https://www.autometer.com/media/Service_Form.pdf Thanks, Jim
Date published: 2020-05-30
Does the 7178 have backlight illumination like other C2 gauges?
Thank you for your inquiry. The 7178 dial face does not light up. The only lighting is the digital display and the LED bar display.
Date published: 2019-05-28
Can I extend the o2 sensor wires? My engine is in the back of a 4 seater sand rail
Hi Beene, thank you for the question. We would highly advise against extending the wires on a wideband harness. We do offer a 25' harness, model 5253, as an optional item: https://www.autometer.com/wideband-afr-ext-length-harness-pro.html
Date published: 2018-04-24
will this gauge (7178) work work with methanol
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