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B3403 Engine Trouble Code

Meaning of B3403 engine trouble code is a kind of body trouble code and B3403 code can be about replacing a broken oxygen sensor can eventually lead to a busted catalytic convertor which can cost upwards of $2,000. Taking your car into a shop will cost you around $200 depending on the car. However, an oxygen sensor is easy to replace on many cars and is usually detailed in the owner's manual. If you know where the sensor is, you only have to unclip the old sensor and replace it with a new one. Regardless of how you approach it, you should get this fixed right away.

B3403 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 B3403 code is occuring now you should check B3403 repair processes.
Now don't ask yourself; What should you do with B3403 code ?
The solution is here :

B3403 Possible Solution:

B3403 Engine

The crankshaft sensor signals the fuel injection computer or the ignition control when the cylinders are firing. This causes the ignition coil to provide a spark and the injector to inject fuel into each cylinder at the right time.If either sensor isn't working correctly, the car will run rough and the engine will be less efficient. In later car models, the car's computer can usually keep the vehicle running, but the engine warning light on the dashboard goes on to warn the driver.

B3403 Code Meaning :

B 3 4 0 3
OBD-II Diagnostic Body (B) Trouble Code For Engine Ignition System Or Misfire O2 Sensor Heater Circuit Malfunction Cold Start Injector 1 Malfunction Exhaust Gas Recirculation Sensor B Circuit High

Regarding the B3403 code, it would probably be worthwhile to carefully inspect the wire harness near the intake manifold bracket. This is done most easily from below the car in the area near the oil filter.

B3403 OBD-II Diagnostic Body (B) Trouble Code Description

B3403 engine trouble code is about Exhaust Gas Recirculation Sensor B Circuit High.

Main reason For B3403 Code

The reason of B3403 OBD-II Engine Trouble Code is O2 Sensor Heater Circuit Malfunction.

B3403 DTCs may also be triggered by faults earlier down the line. For example, a dirty MAF sensor might be causing the car to overcompensate in its fuel-trim adjustments. As a result, oxygen sensors are likely to report fuel mixture problems.