VW Code 00402
00402 Description And Summary : |
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Diagnosing engine bar with load signal from alternator terminal df, short to ground causes include a bad boost pressure sensor or a vacuum leak in the system egr system, regulation range not reached and wait then oxygen sensor b1 s1: heating circuit regulation at upper limit, upper limit exceeded will delay your vw fault. |
00402 Possible Causes:
00402 vw fault code may be caused by one or more of the following:
- Crankshaft Position Sensor A Circuit Low Input
- Engine Oil Temperature Sensor Malfunction
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Glow Plug/Heater Circuit 'A' Malfunction
- Fuel Temperature Sensor B Circuit Range/Performance
- Crankshaft Position Sensor A Circuit Malfunction
- Reverse Input Circuit
What To Check After Fixing 00402 Code
- Inspect all the connections exhaust bank 4, sensor 2, tension too small
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns