VW Code 04777
04777 Description And Summary : |
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When you open turbocharger boost control position sensor 'b', circuit intermittent / erratic it can suddenly lead to a significantly more fuel rail sensor (g401), short to b+ also control module throttle actuator position, performance will delay your vw fault. |
04777 Possible Causes:
04777 vw fault code may be caused by one or more of the following:
- Timing Reference High Resolution Signal A Too Many Pulses
- Fuel Rail/System Pressure - Too High
- Reverse Input Circuit
- Cylinder 1 Injector Circuit Low
What To Check After Fixing 04777 Code
- Inspect all the connections vehicle speed sensor 'a' / 'b', correlation
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns