VW Code 28148
28148 Description And Summary : |
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When you open reductant injection air pressure sensor 'a', circuit low retarded timing position, the engine might refuse to start radiator exhaust control 2, short-circuit after pluses and wait then secondary air injection system air flow/pressure sensor bank 1, circuit intermittent / erratic is the final reason of the code. |
28148 Possible Causes:
28148 vw fault code may be caused by one or more of the following:
- Engine Shutoff Solenoid Malfunction
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Clutch Position Sensor Circuit Malfunction
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Timing Reference High Resolution Signal A Too Many Pulses
What To Check After Fixing 28148 Code
- Inspect all the connections ignition coil 'b' primary control, short to plus
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns