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B0748 Engine Code Repair

Meaning of B0748 engine trouble code is a kind of body trouble code and when your car's 'B0748 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.

B0748 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 B0748 code is occuring now you should check B0748 repair processes.
Now don't ask yourself; What should you do with B0748 code ?
The solution is here :

B0748 Possible Solution:

B0748 Engine

Power Steering Pressure (PSP) Switch Signal Malfunction The PCM counts the number of times vehicle speed transitions from 0 to a calibratable speed. After a calibratable number of speed transitions the PCM expects that the PSP input should have changed. This DTC is set if the transition is not detected. Vehicle towed with engine running Power steering hydraulic concern was repaired but DTC was not erased PSP switch/shorting bar damaged SIG RTN circuit open PSP circuit open or shorted to SIGRTN PCM damaged Check, if possible, if vehicle was towed or power steering service was performed. Observe PSP V PID while checking wires for intermittents.

B0748 Code Meaning :

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

0
Intake Valve Control Solenoid Circuit Low

7
Fuel Temperature Sensor B Circuit Range/Performance

4
Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)

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.

B0748 OBD-II Diagnostic Body (B) Trouble Code Description

B0748 engine trouble code is about Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical.

Main reason For B0748 Code

The reason of B0748 OBD-II Engine Trouble Code is Fuel Temperature Sensor B Circuit Range/Performance.

B0748 the main thing to check is to verify the operation of the VCT solenoid. You're looking for a sticking or stuck VCt solenoid valve caused by contamination. Refer to vehicle specific repair manual to perform component tests for the VCT unit.