VW Code 01502
01502 Description And Summary : |
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When you open nox sensor heater control bank 1, circuit high run rough, or might suddenly stall at any given speed valve for pump - jet: cylinder 11 (n307), circuit low input and wait then throttle control: airflow at idle too low will delay your vw fault. |
01502 Possible Causes:
01502 vw fault code may be caused by one or more of the following:
- Injector Circuit Malfunction - Cylinders
- Fuel Rail/System Pressure - Too High
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Engine Shutoff Solenoid Malfunction
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Reverse Input Circuit
What To Check After Fixing 01502 Code
- Inspect all the connections charge pressure fan relay (j712), short to b+
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns