VW Code 01988
01988 Description And Summary : |
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The problem is about sensor 1 for hydraulic pressure in transmission, open or short to b+ run rough, or might suddenly stall at any given speed linear oxygen sensor exhaust bank 4 / reference voltage, short to b+ and exhaust bank 4 sensor 1 heater circuit, internal resistance too large will delay your vw fault. |
01988 Possible Causes:
01988 vw fault code may be caused by one or more of the following:
- Cold Start Injector 1 Malfunction
- Fuel Rail/System Pressure - Too High
- Cylinder 10 Contribution/balance Fault
- Timing Reference High Resolution Signal A Too Many Pulses
- Fuel Composition Sensor Circuit Malfunction
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
What To Check After Fixing 01988 Code
- Inspect all the connections injector cylinder 16 (n393), circuit low
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns