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Model No.: 55557806 / 55577092
55557806 / 55577092 APC Boost Pressure Control Valve
55557806 / 55577092 APC Boost Pressure Control Valve SAAB / Pierburg type is a two-position three-way solenoid valve. The nozzles are respectively connected to a high pressure air end (downstream of the supercharger), a low pressure air end (upstream of the supercharger), and a supercharger diaphragm actuator. The on/off of the boost pressure control solenoid valve is controlled by the engine control module. When the solenoid valve is de-energized, the left chamber of the diaphragm actuator is in communication with the low pressure air end. When the solenoid valve is energized, the left chamber of the diaphragm actuator is in communication with the high pressure air end.
Technical parameter of 55557806/55577092 APC Boost Pressure Control Valve:
Test point 1: air pressure is 68±8KPa when duty ratio is (30±1)% Test point 2: air pressure is 3-15KPa when duty ratio is (80±1)%
OEM number 55557806 / 55577092 Normal voltage DC12V, ±10% (Or customized) Working voltage
8V - 16V
Normal resistance 23 ± 2°, 23 ± 1.2Ω (a 300Ω resistance of parallel windings) Material Plastic, Brass Connection DEUTCH Working temperature -40°C to 180°C Dimension 71mm x 48.3mm x 40mm Duty ratio
Overall dimension of 55557806 Pierburg Type Turbo Boost Pressure Control Solenoid Valve:
Test point 1: air pressure is 68±8KPa when duty ratio is (30±1)%
Test point 2: air pressure is 3-15KPa when duty ratio is (80±1)%
Connection and detail display of 55577092 SAAB Type Boost Pressure Control Valve:
Application display of Opel Type Apc Turbo Boost Pressure Control Solenoid Valve:
How to repair the engine turbo pressure too low:
At present, all the BMWs are using turbocharged engines. I believe that everyone is familiar with the [supercharge pressure regulation, credibility: low pressure" fault. This fault will lead to engine acceleration, power loss, transmission system failure, etc. The question, what exactly are those components?
First understand the principle flow of the pressurization:
Engine boost pressure control involves the following parameters: intake air temperature, engine speed, throttle position, atmospheric pressure, intake manifold pressure, and pressure before the throttle. The DME control module controls the electronically controlled pneumatic Pressure Transducer (EPDW) according to the boosting demand. The EPDW is used to control the vacuum actuator, and the vacuum actuator is the key to the opening and closing of the wastegate valve. When closed, the exhaust gas will enter the turbine of the turbocharger to pressurize; when the waste bypass valve is opened, the exhaust gas will directly enter the exhaust pipe and be discharged outside the vehicle, using the Euro 6 emission engine, one click directly Replaced the use of EPDW and actuators. Know the principle of supercharging, the problem can be solved, according to the following fault priority check:
1. The vacuum supply unit is faulty or the Euro 6 emission motor is faulty.
a) Vacuum pump damage
To pressurize, the wastegate valve must be closed. This valve should be closed. The vacuum pressure of the vacuum accumulator in the valve chamber cover must be strong enough (above 80k Pa), while the vacuum accumulator and brake boost vacuum The pressure is generated by the engine-driven vacuum pump. If the vacuum pump is damaged, the negative pressure will not be generated, the waste bypass valve will normally open, and the boost pressure will of course be lowered.
b) There is air leakage in the pipeline of the vacuum supply device, including the following aspects
Welcome to your any question and inquiry!
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