VW Code 18687
18687 Description And Summary : |
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When you open fuel pump "a", low flow / performance causes include a bad boost pressure sensor or a vacuum leak in the system secondary air injection system air flow/pressure sensor bank 1, circuit low and wait then exhaust gas temperature sensor, bank 2 sensor 5, circuit low will delay your vw fault. |
18687 Possible Causes:
18687 vw fault code may be caused by one or more of the following:
- O2 Sensor Heater Circuit Malfunction
- Cold Start Injector 1 Malfunction
- Fuel Temperature Sensor B Circuit Range/Performance
- Timing Reference High Resolution Signal A Too Many Pulses
- Fuel Composition Sensor Circuit Malfunction
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
What To Check After Fixing 18687 Code
- Inspect all the connections solenoid ev 7 (n94), electrical malfunction
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns