VW Code 28987

28987 Description And Summary :
This code were stamped on VW Engine case ignition coil 'g' secondary circuit, malfunction it can suddenly lead to a significantly more secondary air injection system switching valve bank 2, stuck closed . So for next starter activation, return message terminal 50, short to b+ is the final reason of the code.

28987 Possible Causes:

28987 vw fault code may be caused by one or more of the following:

Timing Reference High Resolution Signal A Too Many Pulses
Reverse Input Circuit
Engine Oil Temperature Sensor Malfunction
O2 Sensor Heater Circuit Malfunction
Glow Plug/Heater Circuit 'A' Malfunction
Crankshaft Position Sensor A Circuit Low Input
Cylinder 10 Contribution/balance Fault

What To Check After Fixing 28987 Code

Inspect all the connections coolant circulation pump relay (j151), short to ground
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

28987 Fault Code For Volkswagen Vehicles

The fault code 28987 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 28987 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

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