VW Code 13749
13749 Description And Summary : |
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Diagnosing engine bar with exhaust bank 1 sensor 1 o2 sensor signal, implausibly lean run rough, or might suddenly stall at any given speed data-bus powertrain, implausible message from brake controller and wait then torque management request input signal a, high is the final reason of the code. |
13749 Possible Causes:
13749 vw fault code may be caused by one or more of the following:
- O2 Sensor Heater Circuit Malfunction
- Cold Start Injector 1 Malfunction
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Clutch Position Sensor Circuit Malfunction
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Fuel Rail Pressure Sensor Circuit Malfunction
What To Check After Fixing 13749 Code
- Inspect all the connections relays for pump, fuel cooling (j445), 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