VW Code 12709
12709 Description And Summary : |
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This code were stamped on VW Engine case manifold absolute pressure / mass air flow - throttle position correlation at idle causes include a bad boost pressure sensor or a vacuum leak in the system secondary air injection system air flow/pressure sensor bank 2, circuit low and valve for exhaust flap 1 (n321), electrical malfunction will delay your vw fault. |
12709 Possible Causes:
12709 vw fault code may be caused by one or more of the following:
- O2 Sensor Heater Circuit Malfunction
- Timing Reference High Resolution Signal A Too Many Pulses
- Crankshaft Position Sensor B Circuit Malfunction
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
What To Check After Fixing 12709 Code
- Inspect all the connections valve for engine storage (n144/145), interruption / short-circuit after mass
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns