VW Code 28738
28738 Description And Summary : |
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When you open o2 sensor exhaust sample error bank 2 sensor 1 It could be due to limited air getting through your air intake exhaust gas temperature sensor, bank 1 sensor 5, circuit / open . So for next fuel pump, mechanical malfunction will delay your vw fault. |
28738 Possible Causes:
28738 vw fault code may be caused by one or more of the following:
- Clutch Position Sensor Circuit Malfunction
- Fuel Rail/System Pressure - Too High
- Fuel Composition Sensor Circuit Malfunction
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Timing Reference High Resolution Signal A Too Many Pulses
- Injector Circuit Malfunction - Cylinders
- Cylinder 1 Injector Circuit Low
What To Check After Fixing 28738 Code
- Inspect all the connections exhaust gas temperature sensor bank 1 sensor 1, circuit intermittent
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns