OBD2 vehicle scanner

  Trouble phenomenon: The engine of a 2008 Audi A6L2.0TSI sedan could not start. Fault diagnosis and troubleshooting: After connecting the car, connect the fault diagnosis instrument, read the oil pressure of the low-pressure part of the fuel system, and find that the oil pressure is 0. When the low-pressure fuel pump was disassembled, it was found that the fuel tank was empty. The reason is that the fuel level sensor is stuck and the fuel gauge indication is inaccurate. After adding fuel, measure the oil pressure of the low-pressure part again and find that the oil pressure is 300kPa, which is normal. Test drive, there is still no sign of the car. Measure the ignition waveform and it is normal. After measuring the fuel injection pulse, it was found that when the starter was running, the fuel injection pulse was normal, but it disappeared quickly. This shows that the engine computer took the initiative to cut off the fuel. Further, measure the oil pressure of the h...

  As states begin to lift the lockdown, self-quarantine, and stay-at-home orders, vehicle owners find out that their car won’t start or are hearing strange noises when they start the engine or drive. Basic car maintenance is still important even during the quarantine. Let’s take a look at a few car problems that can develop during quarantine and what you can do to avoid these problems. Weak Battery The first thing that you will notice if you don’t use your car for an extended time is that the battery will get weak. The engine will struggle to turn over, or in some cases, a dead battery will prevent you from starting the car. Even when your car is parked and not in use, the battery itself is still in use, which means the battery is slowly discharging. A small current, typically in the 200-600 mA range, is drawn by one or more modules such as the security system and door lock module. This is normal and is not a problem when the car is parked for only a few days. This ...