Review on Lichamp R134A AC Gauge Set: Efficient Diagnostic Manifold Gauge for R134A R12 R22 R502 Refrigerants - Freon Charging and Evacuation by Mitchell Norman

It worked as advertised, well built block and gloves came in handy (I thought they were stupid at first) Here's what I did.1. Start the car, turn on the AC, make sure the fans in front of the car are spinning, if not then that's probably your problem. Turn off the car.3. Attach the sensor to the hood latch4. Make sure both the high and low side are closed on the pressure gauges5. Make sure both ports are closed6. Connect the yellow hose and container 134a7. Connect the bottom and top but make sure they are in the closed position8. Clean the yellow hose9. Open the blue side on the manifold, slightly unscrew the blue hose on the coupler to blow through the blue hose, close the blue manifold10. Do the same on the red side.11. Both the red and the blue side of the distributor must be covered12. All hoses must be filled with R134A13. Slowly open the bottom and observe the movement of the sensor needle. Stop spinning when it moves14. Slowly open the top and observe the movement of the sensor needle. Stop spinning when it moves15. Auto start 16. Turn on AC17. Watch the pressure. What it should be depends on the temperature, humidity, and the manufacturer's recommendations. I have a repair manual for my car so I used it.18. According to my production (Honda Odyssey 2011) Rev the engine to 1500 rpm for 10 minutes and see where the pressure is. Record these rates19. THE HARD PART BE VERY CAREFUL NOT TO GET TOO MUCH INa. Open the valve on the low pressure side for 5 seconds and check the pressure againb. Increase the RPM to 1500 and see where the high side sensor is. Repeat a and b20. Let's break it down into parts. Close the needle valve on the can. Reopen the valve on the low pressure side to allow the yellow hose to drain into the vehicle. c. Turn the lower fitting counterclockwise until it fails and disengages. Turn the high-side fitting counterclockwise until it stops, disconnect