Review on 🚗 Innovate Motorsports (3837) LM-2 (BASIC) Digital Air/Fuel Ratio Wideband Meter - Bosch LSU 4.9, Black by John Mejia

If I could give these 10 stars I would. I've been working on engines for almost 50 years and I'm still working on vintage cars (ie with carburetors). All this time I used the plug and read method with satisfactory results. I live at 7500ft now and love to drive from here to the mountains and back in a day or two. Some vehicles stop more than 10,000 feet from fouled spark plugs. This device, along with an additional exhaust pipe tool, taught me in an hour what I had been guessing for all these years. (I had to put a 24" extension tube on the tailpipe accessory to prevent it from reading the O2 reverse into the tailpipe, easy enough with the red silicone hose). I just went from a 240 to a 200 main jet on a Harley. 120R engine with 51mm CV carburetor. Works better than ever, no guesswork. It took 20 minutes to set up and everything I needed (apart from the extension hose) was included. Trimmed to idle via WOTI, my carburettor sports car friends would certainly want to borrow it. right Mark?