Mazda MYSTERY No One Could Solve...Part 2 (P219B- Air Fuel IMBALANCE)

Now that we have collected some very interesting scan data during the test drive, let's dive under the hood and do some checks to rule out possible causes for this P219B - Bank 2 Air Fuel Ratio Imbalance DTC. The findings are surprising, but make perfect sense! THINKTOOL PROS: https://www.amazon.com/dp/B08XXWHQVJ?... SUR&R FUEL PRESSURE TEST KIT: https://www.amazon.com/dp/B004IJOLPE?... OTC FUEL INJECTOR PULSER: https://www.amazon.com/dp/B0002SR5OO?... Enjoy! Ivan