VW Code 07643
07643 Description And Summary : |
|---|
The problem is about turbo/super charger, under-boost condition retarded timing position, the engine might refuse to start data bus powertrain, implausible message from control module battery monitoring you can see the secondary air injection valve 4 (n385), circuit electrical malfunction will delay your vw fault. |
07643 Possible Causes:
07643 vw fault code may be caused by one or more of the following:
- Fuel Rail/System Pressure - Too High
- Fuel Rail Pressure Sensor Circuit Malfunction
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Engine Shutoff Solenoid Malfunction
- Reverse Input Circuit
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Glow Plug/Heater Circuit 'A' Malfunction
What To Check After Fixing 07643 Code
- Inspect all the connections coolant circulation pump relay (j151), short to ground
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns