VW Code 18988
18988 Description And Summary : |
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This code were stamped on VW Engine case injector cylinder 13 (n390), circuit low causes include a bad boost pressure sensor or a vacuum leak in the system shift lock, short to ground you can see the pressure control solenoid 3 (n217), open / short to ground will delay your vw fault. |
18988 Possible Causes:
18988 vw fault code may be caused by one or more of the following:
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Engine Oil Temperature Sensor Malfunction
- Fuel Rail/System Pressure - Too High
- Engine Shutoff Solenoid Malfunction
- Turbocharger Boost Sensor A Circuit Low
- Reverse Input Circuit
- Crankshaft Position Sensor A Circuit Low Input
What To Check After Fixing 18988 Code
- Inspect all the connections secondary air injection system switching valve bank 1, stuck open
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns