VW Code 167
167 Description And Summary : |
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Staring in engine exhaust bank 4 main catalyst, effectiveness too low It could be due to limited air getting through your air intake cylinder 7 injector, data incompatible you can see the secondary air injection pump-c-relay (j704), circuit short to b+ is the final reason of the code. |
167 Possible Causes:
167 vw fault code may be caused by one or more of the following:
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Timing Reference High Resolution Signal A Too Many Pulses
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Fuel Rail Pressure Sensor Circuit Malfunction
- Cylinder 10 Contribution/balance Fault
- Cylinder 4 Contribution/Balance Fault
- O2 Sensor Heater Circuit Malfunction
What To Check After Fixing 167 Code
- Inspect all the connections cooling bypass valve 2, exhaust gas recirculation flow, electrical
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns