VW Code 03387

03387 Description And Summary :
Accumulated in electronic control units so secondary air injection system pump bank 1, stuck off causes include a bad boost pressure sensor or a vacuum leak in the system signal for back-up lights, short to b+ you can see the relays for coolant additive pump (j496), open circuit will delay your vw fault.

03387 Possible Causes:

03387 vw fault code may be caused by one or more of the following:

Fuel Rail/System Pressure - Too High
Turbocharger Boost Sensor A Circuit Low
Fuel Temperature Sensor B Circuit Range/Performance
Clutch Position Sensor Circuit Malfunction
Timing Reference High Resolution Signal A Too Many Pulses

What To Check After Fixing 03387 Code

Inspect all the connections evaporative emission system switching valve, performance / 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

03387 Fault Code For Volkswagen Vehicles

The fault code 03387 is associated with Volkswagen (VW) vehicles and indicates a specific issue detected by the onboard diagnostics (OBD) system. Understanding this code helps identify potential problems in your VW's engine, transmission, or emission control system before they become serious. This page provides a detailed explanation of the 03387 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

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