Innovate Motorsports 3806 LM-2 Digital Air/Fuel Ratio Wideband Meter (1 O2 Sensor) and OBD-II Scan Tool

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This Air fuel ratio meter is a must have for tuning a carburetor engine. The user manual is fairly simple and the meter is easy to setup and use. No need to wait and schedule time on a chassis Dynamometer and pay for it over and over. One time Dino tuning a car can easily cost more than this air/fuel ratio meter. I have also used it to read/clear OBDII codes on several cars and it has worked great for that too. I am very pleased with this product and would recommend it to friends.

The product is working great. I have no issue using it paired with romraider to log afr in conjunction with other ecu parameters.

This a handy tool to make tuning much easier. The only hard part was getting the bunge welding into my exhaust pipe. Once I connected this to my '63 C10 pickup, I quickly saw how rich I was running at idle and while driving. My truck was running smoother and with proper AFR in a short time.

I read the reviews on this system before ordering and assumed that maybe those people just had bad luck. I was wrong. This system was defective right out of the box. Prior to installing, the O2 sensor would not free air calibrate. Kept getting an E8 message. I wasted a full day contacting Innovate’s tech support, and they were not helpful. I was asked to test the system with another O2 sensor - Most people don’t keep $100 spare sensors just laying around. I returned the system and ordered a setup from AEM that works flawlessly.