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B3438 Engine Code Repair

Meaning of B3438 engine trouble code is a kind of body trouble code and when your car's 'B3438 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.

B3438 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 B3438 code is occuring now you should check B3438 repair processes.
Now don't ask yourself; What should you do with B3438 code ?
The solution is here :

B3438 Possible Solution:

B3438 Engine

Excessive air inflow can be caused by a vacuum leak, a dirty sensor or, an exhaust gas recirculation valve not closing properly. If the problem is not enough fuel, the culprit may be dirty injectors or fuel filters, a weak fuel pump or a leaky fuel pressure regulator. The lean fuel mix error may be accompanied by rough idling, engine misfires, hesitation during acceleration and overall poor engine performance.

B3438 Code Meaning :

B
OBD-II Diagnostic Body (B) Trouble Code For Engine

3
Ignition System Or Misfire

4
Throttle/Pedal Position Sensor/Switch A Circuit Intermittent

3
Turbocharger Boost Sensor A Circuit Low

8
Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical

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.

B3438 OBD-II Diagnostic Body (B) Trouble Code Description

B3438 engine trouble code is about Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical.

Main reason For B3438 Code

The reason of B3438 OBD-II Engine Trouble Code is Throttle/Pedal Position Sensor/Switch A Circuit Intermittent.

B3438 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.