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what is make the voltage gauge reads high
The charging of automobile battery is divided into main charging and floating charging. Generally, the primary charging of lead-acid battery is proposed to be the main charging, which will be changed to floating charging after reaching the rated voltage gauge. When the floating charging makes the battery voltage gauge rise to about 115% of the rated value, the charging device shall be turned off to stop charging. If the battery voltage gauge is too high during the initial installation of the battery, it may be overshoot. If the over-voltage exceeds 15% after the battery is loaded and used, the generator voltage regulator may be damaged, causing the charging voltage to continue charging after exceeding the specified value, and eventually over-voltage occurs.
Circuit failure this may be due to low voltage gauge power failure and down during driving. At this time, you can substantially check the switches of ignition and starter and the fuse box. Electrical corridor failure this problem is generally ignition coil, capacitor and electronic ignition module. It can start at the morning, turn off after a while, and also start again and turn off again. Canvas circuit failure the gasoline pump is damaged, the canvas pipe is broken, the canvas bay of the carburetor is blocked, and the canvas tank is out of canvas. But in this case, the auto can be renewed, but it's veritably delicate. Detector failure failure of throttle position detector, input inflow detector, input pressure detector, crankshaft position detector and camshaft position sensor.However, the down fault will also do, If the detector fails.
Automatic Down at idle speed is substantially caused by throttle and idle motor. This fault may be caused by serious carbon deposit at throttle/ idle motor or damaged corridor, and inadequate air input is the main reason. At the same time, the position of input stopcock and air inflow detector should also be checked. The machine can maintain idle speed. The machine won't stop until the accelerator is pressed at idle speed. The input system factors similar as throttle stopcock and idle motor need to be checked first. In addition, the energy system should also be considered, including whether the energy pump is damaged, whether the energy passage is smooth, whether the energy snoot is blocked, whether the energy pressure is normal, etc. The cause of this fault may also be the problem of spark draw and ignition coil. The poor ignition quality of spark draw and the damage of ignition coil can be judged through the fire jump test, but it needs to be operated by professionals. Do not try to break it byyourself.However, you need to find a master to dissect it with instruments, If there's a serious problem with the computer board.
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