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B1543 Engine Trouble Code

Meaning of B1543 engine trouble code is : When your car's 'B1543 Check Engine' light comes on, it's usually accompanied by a sinking feeling in the pit of your stomach. The light could mean a costly problem, like a bad catalytic converter, or it could be something minor, like a loose gas cap. But in many cases, it means at minimum that you'll be visiting the car dealer to locate the malfunction and get the light turned off.

B1543 Possible Solution:

B1543 Engine

Gasoline engines use spark plugs to cause an explosion of fuel within the cylinder. In a properly timed engine, this explosion occurs at the proper moment to send the piston to the bottom of the cylinder and provide power to the drive shaft. If the plug wires are out of sequence, the explosion occurs at the wrong time. The improper timing of the explosion sometimes pushes the cylinder the wrong direction or interferes with the turning of the crank. As a result, the engine stutters or backfires, if it runs at all.

B1543 Code Meaning :

B 1 5 4 3
OBD-II Diagnostic Body (B) Trouble Code For Engine Fuel And Air Metering Fuel Composition Sensor Circuit Malfunction Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector) Exhaust Gas Recirculation Sensor B Circuit High

Is the fuel pump sometimes not priming when you turn the key to ON(II)? Start by measuring the fuel pressure and checking whether you have bright white-bluish spark at all four plugs. The mechanical timing is also something that you should check, as we mentioned above.

B1543 OBD-II Diagnostic Body (B) Trouble Code Description

B1543 engine trouble code is about Exhaust Gas Recirculation Sensor B Circuit High.

Reason For B1543 Code

The reason of B1543 OBD-II Engine Trouble Code is Fuel Composition Sensor Circuit Malfunction.

B1543 code on vehicles with electronically controlled automatic transmissions, the 3-4 shift solenoid is responsible for actuating the hydraulic circuits to activate clutches or bands that change gears inside the automatic transmission.