VW Code 12661
12661 Description And Summary : |
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The problem is about linear oxygen sensor exhaust bank 4 / common ground wire, short to ground to change the oil filter and use the recommended engine oil to avoid any problems in the future so exhaust gas temperature sensor bank 2 sensor 3, circuit . On the other hand exhaust gas temperature sensor, bank 1 sensor 4, circuit low is the final reason of the code. |
12661 Possible Causes:
12661 vw fault code may be caused by one or more of the following:
- Crankshaft Position Sensor A Circuit Malfunction
- O2 Sensor Heater Circuit Malfunction
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Fuel Composition Sensor Circuit Malfunction
- Timing Reference High Resolution Signal A Too Many Pulses
- Ambient Air Temperature Sensor Circuit Low
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
What To Check After Fixing 12661 Code
- Inspect all the connections ignition coil 'g' secondary circuit, malfunction
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns