P2004 Volkswagen -

Question

2007 VW EOS: The check engine light came on but car was performing fine. I had the codes pulled to see what was going on. It reported P0642 and P2004. The light went away during the next drive. NOw the car is intermittently hesitating under acceleration but the check engine light has not come back on. Any suggestions for a cure?
Thank you, Keith

Answer 1

Hi there,

The code P2004 indicates an issue with the intake manifold runner. Here is some info regarding this code.

P2004 VOLKSWAGEN - Intake Manifold Runner Control Bank 1 Stuck Open

Read more: https://www.autocodes.com/p2004_volkswagen.html

The code P0642 indicates an issue with the ECM. Here is some info regarding this code.

P0642 VOLKSWAGEN - Sensor Reference Voltage 'A' Circuit Low

Read more: https://www.autocodes.com/p0642_volkswagen.html