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B1643 Engine Code Repair

Meaning of B1643 engine trouble code is a kind of body trouble code and when your car's 'B1643 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.

B1643 Fault Symptoms :

  1. Check engine light comes on
  2. Engine stalling or misfiring
  3. Engine performance issues
  4. Car not starting
If one of these reasons for B1643 code is occuring now you should check B1643 repair processes.
Now don't ask yourself; What should you do with B1643 code ?
The solution is here :

B1643 Possible Solution:

B1643 Engine

The firing order is an important part of the overall design of the engine and is determined during the design of the engine to eliminate as much engine vibration as possible. If the firing order is changed or adjusted, the ignition from the spark plug is delivered at the wrong time and the engine functions poorly or does not run. The firing order for a particular engine is typically found in the repair manual specific to that model.

B1643 Code Meaning :

B 1 6 4 3
OBD-II Diagnostic Body (B) Trouble Code For Engine Fuel And Air Metering Fuel Composition Sensor Circuit Malfunction Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector) Glow Plug/Heater Circuit 'A' Malfunction

The oxygen (02) sensors on your car measure the oxygen in the exhaust to determine how rich or lean the ratio of fuel and air are in the cylinders. Optimizing this mixture means better fuel economy and fewer exhaust emissions.

B1643 OBD-II Diagnostic Body (B) Trouble Code Description

B1643 engine trouble code is about Glow Plug/Heater Circuit 'A' Malfunction.

Main reason For B1643 Code

The reason of B1643 OBD-II Engine Trouble Code is Fuel Composition Sensor Circuit Malfunction.

B1643 DTC specifically refers to the camshaft (cam) timing. In this case, if the cam timing is over-retarded, the engine light will be illluminated and the code will be set.