Review on Enhance Vehicle Performance with 12V 4 Pulse Modes Automotive Fuel Injector Tester: Handheld Car Diagnostic Scan Testing Tool for Efficient Fuel Pressure System Evaluation, Identify Individual Stuck/Leaking/Burnt-out Problems by Tony Doan

I used this to test the fuel injectors on my jeep and found three had uneven pressure drops. For testing I used a short and medium pulse. I have a 2000 Honda and all I had to do was put a gauge on the fuel filter and turn on the key switch to pressurize the lines to test. My only complaint is the battery/power cables were a little short and it worked because I had a 4 cylinder engine but if it was a v6 or v8 it wouldn't work. Unless you add the wires yourself. Otherwise it was worth the money and I would recommend it.