VW Code 07778
07778 Description And Summary : |
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The problem is about injector control pressure regulator, circuit high causes include a bad boost pressure sensor or a vacuum leak in the system linear oxygen sensor exhaust bank 3 / common ground wire, open circuit you can see the ignition coil 'j' primary control, circuit low will delay your vw fault. |
07778 Possible Causes:
07778 vw fault code may be caused by one or more of the following:
- Crankshaft Position Sensor B Circuit Malfunction
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Glow Plug/Heater Circuit 'A' Malfunction
- Timing Reference High Resolution Signal A Too Many Pulses
- Crankshaft Position Sensor A Circuit Low Input
What To Check After Fixing 07778 Code
- Inspect all the connections exhaust bank 4 sensor 1 heater circuit, electrical malfunction
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns