Electric Fuel Pump Diagnostics

[itisagoodname]

Does anyone know of a method or a way to check the LPFP operation via vag-com?

When i started the car today it was buzzing, not the usual quiet hum. It sounded more like really bad speaker feedback. Mine has already failed once and was replaced under warranty, i want to make sure its not going out again.

 

[Arin@APR]

You can check the pumps duty cycle on block 103. At idle it should be around 50% iirc. Pumps that are going bad usually are much higher.

 

[itisagoodname]

Awesome, thank you!

 

[crew219]

You should replace the fuel filter first.

Dave

 

[itisagoodname]

Yup, i have spares and its past due. I will when i change the oil Saturday. I still dont like that electronic buzzing noise... never a good sign.