Shaanxi Automobile fuel Delong F3000 principle engine Shaanxi Automobile Delong F3000 when neutral slide left foot accelerator pedal, the engine speed will quickly drop to idle speed, throttle position sensor detects this signal and transmitted to a computer, the computer will follow the design of the idle conditions injector fuel injection pulse width control the engine at idle speed. Foot off the accelerator pedal when with a sliding block, due to the anti-drag effect Shaanxi Automobile Delong F3000 engine speed with the decline in the speed of a slow decline, there is a process. Engine speed is between low-speed and high-speed point off the oil off the oil-point speed at which the throttle position sensor detects the position of the throttle valve is fully closed Xuhui Shaanxi Auto dump truck dealers, that the computer detected by the throttle position sensor throttle in the idle condition, but Shaanxi Automobile Delong F3000 speed was higher than the design requirements idle speed, so computer-controlled injector fuel injection is stopped. With the speed of the lower engine speed is also reduced when the oil reaches the breaking point of the low-speed computer-controlled injector fuel injection restored in stages if necessary to stop oil supply to accelerate, simply depress the accelerator pedal again to resume oil, so Shaanxi Automobile Delong F3000 vehicle speed driving. By stopping the fuel injection nozzle to save fuel and improve fuel economy. Shaanxi Automobile Delong F3000 car starts intermittently unresponsive Diagnosis: According to the control theory, started the relay from the Shaanxi Automobile Delong F3000 engine control unit J623 Control (shown in Figure l-22). Fault code reading system connecting VAS5052 is 18137, starter inhibit the signal short circuit to positive, and can not be cleared. Have replaced the starter, starter relay, ignition switch, clutch pedal switch, the engine wiring harness, but still can not eliminate the fault. After I took a moment to re-analyze, Shaanxi Automobile Delong F3000 with manual transmission, for security reasons, Xuhui Shaanxi Auto dump address, the addition of a clutch stroke sensor and clutch pedal switch, that can not be started without depressing the clutch dump Xuhui Shaanqi Shipping, the two switches have a coordinated relationship, that in the end the clutch pedal, the clutch pedal switch is turned on, while the pedal stroke sensor and the stroke identification signal completely, after the vehicle starts. Into the 008-066 group data streams, sometimes no signal was found in Xuhui Shaanxi Auto dump truck into 53 one stroke sensor signal read 08-08, everything is normal. It seems that the clutch pedal switch faulty suspects are great, but the switch is a new car parts ah, is it new is bad? Careful examination, did not follow the standard installation method installation mechanic job properly installed Shaanxi Automobile Delong F3000 After the clutch pedal switch fault disappears! Shanghai Xuhui Huaying _ [] _ ??Shaanxi Automobile Dealers tipper dumper Xuhui Shaanqi provided by Shanghai Huaying. Search for "SHAC, tractors, trucks, special vehicles and other" reliable supplier network operators choose to have the whole alliance certification: Shanghai Huaying Shaanxi Automobile Automobile Sales Co., Ltd. (www.huaying.com), integrity reliable, now click on the "Business League call" on page live chat with us now!