How much does Rongguang air flow meter | thermal mass flow meter cost? | SILVER,transit time ultrasonic flow meter

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1. Wuling Rongguang has a meaty feeling during acceleration

1. Cause analysis: Mainly due to incorrect ignition advance angle, low fuel pressure, air leakage in the intake system, malfunction of throttle position sensor or front air flow meter, poor operation of fuel injectors, and poor operation of EGR system.

2. Troubleshooting process:

1. After starting the engine, check if the "check engine" warning light is off

2.1 If the warning light is not off, check the cause and location of the fault according to the fault code

2.2 If the warning light is off, check the oil pressure of the supply system, the operation of the fuel injector, and the quality of the gasoline.

3、 Check if the ignition timing is delayed too much

4.1 The ignition timing is normal. 4.2 If the ignition timing delay is too large, check whether the knock sensor and ECU are normal. 5. Check whether the EGR system is normal.

6、 Check if the intake and exhaust systems are blocked.

7、 Check if the signals of the air flow meter, throttle position sensor, crankshaft position sensor, camshaft position sensor, and oxygen sensor are normal. 8.1 Abnormal, check for sensor malfunction. 8.2 Normal, check the ignition high voltage and ignition energy during acceleration. 9.1 If the ignition high voltage and ignition energy are abnormal, troubleshoot according to the ignition system. 9.2 The ignition high pressure and ignition energy are normal. Check the ignition timing, cylinder pressure, and mechanical faults of the disassembly machine. 2. May I ask why my Wuling Rongguang van stalls after releasing the throttle? The main reason for the stall is that the engine does not have idle speed, whi

ch may involve problems such as idle valve failure, dirty or carbon deposits in the throttle and air flow meter, and air leakage in the intake system. The following is a specific analysis: Idle related component faults. The idle valve is a key component that controls the idle speed of the engine. If it gets stuck, dirty, or damaged, a wide hand can cause the engine to be unable to maintain the lowest stable speed, and it will shut down directly when the throttle is released. In addition, carbon deposits or dirt on the throttle valve can hinder air from entering, causing abnormal concentration of the mixture during idle; If the air flow meter fails, it may falsely report the intake air volume, causing the ECU (engine control unit) to adjust the fuel injection amount incorrectly, which can lead to engine shutdown. If there is a leakage or poor sealing of components such as the intake manifold, vacuum pipe, PCV valve (positive crankcase ventilation valve), EGR valve (exhaust gas recirculation valve), etc. in the intake system, it will cause additional air to enter the intake system and make the mixture too lean. When the throttle is released, the engine load decreases and the ECU reduces the fuel injection amount, but the leakage problem will further dilute the mixture, ultimately leading to engine stalling due to insufficient combustion. Common leakage points include: loose intake manifold clamp or broken rubber hose; Leakage of intake manifold gasket; The O-ring of the fuel injector is aging; The vacuum tube plug is detached or broken; The PCV valve is too wide open, the activated carbon canister valve is normally open, and the EGR valve is not tightly closed. Spark plug and cylinder line issues (to be judged based on acc

How much does Rongguang air flow meter | thermal mass flow meter cost?

1. Wuling Rongguang has a meaty feeling during acceleration

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