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Kevin, VW Mechanic
Category: VW
Satisfied Customers: 2084
Experience:  Diagnostic technician at vw/ audi specialist
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How to repair code P1340 camshaft position sensor G-40

Customer Question

How to repair code P1340 camshaft position sensor G-40 engine speed sensor G20 incorrect allocation
Submitted: 1 year ago.
Category: VW
Expert:  Kevin replied 1 year ago.

Hi I'm Kevin First thing you need to do is have timing checked

Expert:  Kevin replied 1 year ago.


17748/P1340/004928 - Camshaft Position Sensor (G40) / Engine Speed Sensor (G28): Incor. Correlation

Possible Causes

  • Timing Belt/Chain incorrectly installed

    • Timing Chain probably lengthened
  • Camshaft Position Sensor (G40) faulty
  • Engine Speed Sensor (G28) faulty

Possible Solutions

  • Check Timing Belt/Chain installation

    • Use Measuring Value Blocks (MVB) to Check Timing Chain
  • Check/Replace Camshaft Position Sensor (G40)
  • Check/Replace Engine Speed Sensor (G28)

Special Notes

  • When found in the 1.8T engine, check engine oil pressure. The oil pump pickup may be restricted.