Logo

B3748 Engine Trouble Code

Meaning of B3748 engine trouble code is a kind of body trouble code and theoretically you can drive for a few weeks or even months with a broken MAF sensor. You will notice a decrease in gas mileage and over time the car will eventually start stalling a lot. At a shop, the replacement cost is between $240-$400 depending on the car, but that's usually the cost of parts because the labor is relatively simple.

B3748 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 B3748 code is occuring now you should check B3748 repair processes.
Now don't ask yourself; What should you do with B3748 code ?
The solution is here :

B3748 Possible Solution:

B3748 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.

B3748 Code Meaning :

B 3 7 4 8
OBD-II Diagnostic Body (B) Trouble Code For Engine Ignition System Or Misfire Fuel Rail Pressure Sensor Circuit Malfunction Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector) Clutch Position Sensor Circuit Malfunction

The poor running symptoms are consistent with a MAP sensor malfunction. In addition, in some cases, a bad MAP sensor will not throw a code. Again, the ELD code likely represents a separate wiring issue.

B3748 OBD-II Diagnostic Body (B) Trouble Code Description

B3748 engine trouble code is about Clutch Position Sensor Circuit Malfunction.

Main reason For B3748 Code

The reason of B3748 OBD-II Engine Trouble Code is Fuel Rail Pressure Sensor Circuit Malfunction.

B3748 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.